Python 3 Global Variable Help

[Windspar]

I would choose a better layout.
Example

def get_user_input(allowed=[], message='Choose: '):
    while True:
        user_input = input(message).lower().strip()

        if user_input in allowed:
            return user_input
        elif user_input in ['quit', 'exit']:
            print("Bye for now\n")
            exit()
        else:
            print('Try again')

def levelone_begin():
    print('Welcome to your adventure.')
    print('Are you ready? yes/no')
    print('1 for yes')
    print('2 for no')
    user_input = get_user_input(['1', '2'])

    if user_input == '1':
        print('_' * 100)
        print('Alright, Lets begin')
        return levelone_awake
    elif user_input == '2':
        print('_' * 100)
        print('Maybe later\n')
        exit()

def levelone_awake():
    print('_'*100)
    print('You awaken to find youself in a dimly lit cavern, beside you lies a sword and a shield ')
    print('do you want to pick them up')
    print('1 for yes')
    print('2 for no')
    user_input = get_user_input(['1', '2'])

    if user_input == '1':
        print('_'*100)
        print('You stand up, dust yourself off while trying to ignore your throbbing head, grab the weapons on the ground,')
        print('look around and see a door ajar.')
    elif user_input == '2':
        print('clooock')
        return levelone_awake

def main():
    while True:
        question = levelone_begin
        while question:
            question = question()

        user_input = get_user_input(['y', 'n', 'yes', 'no'], 'Play Again? Y or N: ')
        if user_input == 'N':
            print ('Goodbye!')
            exit()

        print('Goodluck!\n')

main()