[Tutor] How to end this program

[abid saied]

    # OK, I'm stuck on setting up an instruction that ends the program once you
    # say either 'yes' or 'no'. And if you don't say 'yes' or 'no', and you reach
    # the end, the program comes to an end. Please remember I'm a newbie and would
    # appreciate any advise in plain simple English, like I was 5 years old!



import time

def main():
    print()
    print("YES/NO Game ")
    time.sleep(2)
    print()
    print()
    
    print("In this game, I will ask you a series of questions, if you answer YES or NO, you loose!")
    print()
    print("Remember to answer in Capitals!")
    print()
    time.sleep(2)
    print("Starting the game ...")
    print()
    time.sleep(2)
    name = input("What is your name? ")
    print()
    time.sleep(2) 
    print("ok " + (name) + (", time for the questions..."))
    print()
    time.sleep(2)
    
    
    answer = input("How old are you?  ")
    if answer == "YES":
        print("...You said yes, you loose!")
    elif answer == "NO":
        print ("...You said NO, you loose!")

    
    answer = input("Do you like apples? ")
    if answer == "YES":
        print("...You said yes, you loose!")
    elif answer == "NO":
        print ("...You said NO, you loose!")

    
    answer = input("Do you enjoy music?  ")
    if answer == "YES":
        print("...You said yes, you loose!")
    elif answer == "NO":
        print ("...You said NO, you loose!")

    answer = input("Have you ever been on a train?  ")
    if answer == "YES":
        print("...You said yes, you loose!")
    elif answer == "NO":
        print ("...You said NO, you loose!")

    answer = input("Do you watch 'Home and Away'?  ")
    if answer == "YES":
        print("...You said yes, you loose!")
    elif answer == "NO":
        print ("...You said NO, you loose!")

    answer = input("What is 50/5?  ")
    if answer == "YES":
        print("...You said yes, you loose!")
    elif answer == "NO":
        print ("...You said NO, you loose!")

    answer = input("Can a duck fly?  ")
    if answer == "YES":
        print("...You said yes, you loose!")
    elif answer == "NO":
        print ("...You said NO, you loose!")

        answer = input("Can you drive a car?  ")
    if answer == "YES":
        print("...You said yes, you loose!")
    elif answer == "NO":
        print ("...You said NO, you loose!")

        answer = input("Do you still watch cartoons?  ")
    if answer == "YES":
        print("...You said yes, you loose!")
    elif answer == "NO":
        print ("...You said NO, you loose!")

        answer = input("Can a duck fly?  ")
    if answer == "YES":
        print("...You said yes, you loose!")
    elif answer == "NO":
        print ("...You said NO, you loose!")

    
    print("OK, you win!You didn't say 'YES' or 'NO', well done!")
    time.sleep(2)

    


Abid Saied
abidsaied at gmail.com