AirResrvationSystem

public static void main(String[] args) {

    FlightBookingSystem fbs = new FlightBookingSystem(); //create instance of the class

    Flight flight = fbs.getFlightInfo(); //Obtain flight information from user

    if (flight == null) {
        return; //Exit the program if flight information is not provided
    }

    Scanner scanS = new Scanner(System.in);
    Scanner scanN = new Scanner(System.in);

    String bookMoreSeats;

    do {
        //Ask user if they want to book seats for the flight
        System.out.print("\nWould you like to book seats on the " +
                flight.getFlightName() + " flight? (yes/no): ");

        bookMoreSeats = scanS.nextLine();

        if (bookMoreSeats.equalsIgnoreCase("yes")) {
            boolean validInput = false;
            while (!validInput) {
                System.out.print("How many seats would you like to book?: ");
                try {
                    int bs = scanN.nextInt();
                    flight.bookSeats(bs); //Book the specified # of seats
                    validInput = true;
                } catch (InputMismatchException e) {
                    System.out.println("Invalid input. Please enter an integer value.");
                    scanN.nextLine();
                }
            }
        }
    } while (bookMoreSeats.equalsIgnoreCase("yes"));

    System.out.println(flight.toString()); //Display the flight information
}

public Flight getFlightInfo() {
    //Declare variables/scanners
    Scanner scanS = new Scanner(System.in);
    Scanner scanN = new Scanner(System.in);
    int maxSeats;
    String flightName;

    ArrayList<String> validFlightNames = new ArrayList<>(Arrays.asList("AA", "AC", "DL"));

    //Take user input for the name of the flight and maximum seating
    System.out.println("Here are the available flights!: "
            + "\n- American Airlines (AA)"
            + "\n- Air Canada (AC)"
            + "\n- Delta Air Lines (DL)");

    do {
        System.out.print("\nWhat is the name of your flight: ");
        flightName = scanS.nextLine().toUpperCase();

        if (!validFlightNames.contains(flightName)) {
            System.out.println("Sorry, that is not an available flight. Please try again.");
        }

    } while (!validFlightNames.contains(flightName));

    try {
        System.out.print("What is the maximum amount of seating on this flight: ");
        maxSeats = scanN.nextInt();

        //Validate that maxSeats is greater than 0
        if (maxSeats <= 0) {
            System.out.println("Invalid input. Maximum seating must be greater than 0.");
            return null;
        }
    } catch (InputMismatchException e) {
        System.out.println("Invalid input. Please enter an integer value. ");
        return null;
    }

    //Created and return Flight object with the provided information
    return new Flight(flightName, maxSeats);

} //end of getFlightInfo() method

/*
Project: Airline Reservation System
Programmer: Quynh Nguyen
Date: May 11th, 2023
Program name: AirlineReservationSystem.java
Description: A class for managing airline reservations
*/

public class AirlineReservationSystem {
    private String airlineName;