Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. You are required to assign a label 'formal' if there is an absence of emotion and a presence of questions anywhere within the conversation. If such pattern is not found assign the label 'informal'.
Input: Person1: Hey , John . Nice car .
Person2:Thanks . I finally got rid of that old Nissan that got me through college .
Person1: What is this , the new Ford ?
Person2:No , it ' s last year ' s model .
Person1: True . How much did you pay ?
Person2:$ 14,500 . It only has 10,000 miles on it , so it ' s like a new car .
Person1: Does that mean you ' re not going to take the train to work anymore ?
Person2:Well , sometimes , I think it ' ll be nice to drive to work instead . We ' ll see . Want to go for a ride ?
Person1: Yeah , sure .
Person2:Come on .
Output:
informal