No option to input

[buran]

why not keep it as simple as possible? There is no need for using class, or even a function ro complete this task. You already did it ore or less:

name = input('What is your name? ')
age = input('How old are you? ')
print("Cool, {}.. and your age is {}. You will turn 100 in year {}.".format(name,age, 2017 - int(age)+100))

that is, assuming you are using python3