def _Birthday
  puts ' Hello, today I will be telling you how old you are'
  puts 'please enter your year of birth.'
  year = gets.chomp
  puts 'Now the month you were born in please.'
  month = gets.chomp
  puts 'And finally the day you were born.'
  day = gets.chomp
  puts 'So you were born, ' + year + ' , ' + month + ' , ' + day + '?'
  answer = gets.chomp "(y/n)"
  if answer == 'y'
    puts 'Well then, you are'
    age = ' + year + ' ' + month + ' ' + day + '
    puts Time.local (age)
  else
  _Birthday
  end
end

_Birthday