Sales Tickets KIT

def sell_tickets():
    total_tickets = 500
    ticket_price = 100

    while total_tickets > 0:
        try:
            requested_tickets = int(input("Enter the number of tickets: "))

            if requested_tickets > total_tickets:
                print(f"Only {total_tickets} tickets available.")
            else:
                total_tickets -= requested_tickets
                total_cost = requested_tickets * ticket_price
                print(f"{requested_tickets} tickets sold. Total cost: {total_cost} manat.")

        except ValueError:
            print("Please enter a valid number.")

    print("All tickets are sold.")

sell_tickets()