ATM Datatype Function Test

#include <iostream>
#include <iomanip>
#include <limits>
using namespace std;

//Global Variables
//Balance Variables
float savingsBalance = 0;
float creditBalance = 0;
//Memory Variable
bool exitBank = false;
//Name String Variable
string groupName = "Carl's ";
string currency = "Php ";
//Prototype Functions
    //Menu Function
    //void menuBank(void);
    //Action Functions
        bool anotherBankTransaction(void);
        //Deposit Functions
        void actionBank(int memBalance, int actionBank2);
        //Savings or Credit Functions
        int s_c_Balance(int mem);
        //Exit Functions
        bool exitProgram(void);
    //Tab Functions
    void tab_B1(void);
    void tab_B2(void);
    void tab_B3(void);

main(){
    while (exitBank != true){
        string inputMenu = "inputMenu";
        int memBalance = -1; //0 - Savings Account, 1 - Credit Account
        int actionBank2 = -1; // 0 - Deposit, 1 - Withdraw
        do {
            // Welcome //
            tab_B1(); tab_B3();

            tab_B2();
            cout << "Welcome to " << groupName << " Bank!";

            tab_B1(); tab_B3();

            cout << endl;
            // Welcome //

            // Action Menu //

            // Check Balance
            tab_B2();
            cout << "[1] Check Balance";
            cout << endl;
            // Check Balance

            // Deposit
            tab_B2();
            cout << "[2] Deposit";
            cout << endl;
            // Deposit

            // Withdraw
            tab_B2();
            cout << "[3] Withdraw";
            cout << endl;
            // Withdraw

            // Exit
            tab_B2();
            cout << "[4] Exit";
            cout << endl;
            // Exit

            // Enter Input
            tab_B2();
            cout << "Enter Input: ";
            cin >> inputMenu;
        } while(!(inputMenu == "1" || inputMenu == "2" || inputMenu == "3" || inputMenu == "4")); // do while
        if (inputMenu == "1"){ // Check Balance
            do {
                //Check Balance Aesthetics
                tab_B1(); tab_B3();
                tab_B2();
                cout << groupName << " Bank: Check Balance";
                tab_B1(); tab_B3();
                cout << endl;
                //Check Balance Aesthetics

                //Savings or Credit Balance?
                memBalance = s_c_Balance(memBalance);
            } while (!(memBalance == 0 || memBalance == 1)); // Check Balance
            if (memBalance == 0){
                //Savings Balance
                tab_B2();
                cout << setprecision(2) << fixed;
                cout << "Your savings balance: " << currency << savingsBalance;
                cout << endl;
                system("pause");
                //Savings Balance
                exitBank = anotherBankTransaction();
            } //if
            if (memBalance == 1){
                //Credit Balance
                tab_B2();
                cout << setprecision(2) << fixed;
                cout << "Your credit balance: " << currency << creditBalance;
                cout << endl;
                system("pause");
                //Credit Balance
                exitBank = anotherBankTransaction();
            } //if
        } // Check Balance
        else if (inputMenu == "2"){ //Deposit
            actionBank2 = 0;
            actionBank(memBalance, actionBank2);
        } // Deposit
        else if (inputMenu == "3"){ //Withdraw
            actionBank2 = 1;
            actionBank(memBalance, actionBank2);
        }
        else if (inputMenu == "4"){
            exitBank = exitProgram();
        }
    } //while loop
}
//Action Function
    //Action Functions
        //Deposit Functions
        void actionBank(int memBalance, int actionBank2){
            //actionBank2 0 - Deposit, 1 - Withdraw
            bool validInput = false;
            string actionBankString[] = { "Deposit", "Withdraw" };
            string actionBankString2[] = { "deposit", "withdraw" };
            string actionBankString3[] = { " has been added to", " has been reduced from" };
            do {
                //Deposit/Withdraw Aesthetics
                tab_B1(); tab_B3();
                tab_B2();
                cout << groupName << " Bank: " << actionBankString[actionBank2];
                tab_B1(); tab_B3();
                cout << endl;
                //Deposit/Withdraw Aesthetics

                //Savings or Credit Account
                memBalance = s_c_Balance(memBalance);
                //Savings or Credit Account
            } while (!(memBalance == 0 || memBalance == 1));
            float inputBankAction = -1;
            //Ask Deposit/Withdraw
            tab_B1(); tab_B3();
            tab_B2();
            cout << "How much would you like to " << actionBankString2[actionBank2] << "?";
            tab_B1(); tab_B3();
            cout << endl;
            //Ask Deposit/Withdraw
            float balance = -1;
            if (memBalance == 0){
                balance = savingsBalance;
            }
            else if (memBalance == 1){
                balance = creditBalance;
            }

            if (actionBank2 == 0){
                do {
                    //Enter Input
                    tab_B2();
                    cout << "Enter Amount: ";
                    cin >> inputBankAction;
                    if (!(validInput = cin.good())){
                        cin.clear();
                        cin.ignore(numeric_limits<streamsize>::max(), '\n');
                    }
                    //Enter Input
                } while (inputBankAction < 0);
            }
            else if (actionBank2 == 1){
                do {
                    //Enter Input
                    tab_B2();
                    cout << "Enter Amount: ";
                    cin >> inputBankAction;
                    if (!(validInput = cin.good())){
                        cin.clear();
                        cin.ignore(numeric_limits<streamsize>::max(), '\n');
                    }
                    //Enter Input
                } while (inputBankAction < 0 || inputBankAction > balance);
            }

            //Deposit/Withdraw Output
            if (memBalance == 0){
                savingsBalance += inputBankAction;

                //Final Output
                tab_B2();
                cout << setprecision(2) << fixed;
                cout << currency << inputBankAction << actionBankString3[actionBank2] << " your Savings Account.";
                cout << endl;
                //Final Output
                system("pause");
            }
            else if (memBalance == 1){
                if (actionBank2 == 0) creditBalance += inputBankAction;
                else if (actionBank2 == 1) creditBalance -= inputBankAction;

                //Final Output
                tab_B2();
                cout << setprecision(2) << fixed;
                cout << currency << inputBankAction << actionBankString3[actionBank2] << " your Credit Account.";
                cout << endl;
                //Final Output
                system("pause");
            }
            exitBank = anotherBankTransaction();
        }
        //Savings or Credit Function
        int s_c_Balance(int mem){
            bool validInput = false;
            mem = -1;
            do {
                //Savings Account
                tab_B2();
                cout << "[1] Savings Account";
                cout << endl;
                //Savings Account

                //Credit Account
                tab_B2();
                cout << "[2] Credit Account";
                cout << endl;
                //Credit Account

                //Enter Input
                tab_B2();
                cout << "Enter Input: ";
                cin >> mem;
                if (!(validInput = cin.good())){
                    cin.clear();
                    cin.ignore(numeric_limits<streamsize>::max(), '\n');
                }
                //Enter Input
            } while (!(mem == 1 || mem == 2));
            return mem-1;
        }
        //Exit Functions
        bool anotherBankTransaction(void){
            int input;
            bool validInput = false;
            bool exitBankTransaction = false;
            do {
                //Ask Transaction
                tab_B2();
                cout << "Do you want another transaction? (1 - Yes/2 - No)";
                cout << endl;
                //Ask Transaction

                //Enter Input
                tab_B2();
                cout << "Enter Input: ";
                cin >> input;
                if (!(validInput = cin.good())){
                    cin.clear();
                    cin.ignore(numeric_limits<streamsize>::max(), '\n');
                }
                input--;
                //Enter Input
            } while (!(input == 0 || input == 1));
            if (input == 1){
                exitBankTransaction = exitProgram();
                return exitBankTransaction;
            }
        }
        bool exitProgram(void){
            cout << endl;
            cout << endl;
            tab_B2();
            cout << "Ending program . . . ";
            cout << endl;
            cout << endl;
            return true;
        }
//Tabs Function
void tab_B1(void){
    cout << endl;
    for (int a = 0; a <= 15; a++){
        cout << " ";
    }
}
void tab_B2(void){
    cout << endl;
    for (int a = 0; a <= 17; a++){
        cout << " ";
    }
}
void tab_B3(void){
    for (int a = 0; a <= 30; a++){
        cout << "=";
    }
}