available_toppings = ['mushrooms', 'olives', 'green peppers', 'pepperoni', 'pineapple', 'extra cheese']
requested_toppings = ['mushrooms', 'french fries', 'extra cheese']
for requested_topping in requested_toppings:
    if requested_topping in available_toppings:
        print(f'Adding {requested_topping}.')
    else:
        print(f'Sorry, we don\'t have the {requested_topping}.')
print('\nFinished making your Pizza!')