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:       Excuse me , you look familiar . Did you use to live in New York ?  
 Person2:Yes .  
 Person1:        Did you use to work at NYU ?  
 Person2:Yes , I did .  
 Person1:        Oh , did you know Hugh Young ? He was a music student .  
 Person2:Hugh Young ? Didn ’ t he use to wear a funny yellow jacket all the time ?  
 Person1:        Yes . And he used to play the piano with a jazz group at the university .  
 Person2:I remember Hugh . Most people thought he was a little ... uh ... peculiar . Do you know what he ’ s doing now ?  
 Person1:        Yes , he ’ s a millionaire in Houston now .  
 Person2:A millionaire ? As a jazz musician ?  
 Person1:        Oh , no . He ’ s an executive for a large computer company . I saw an interview with him on TV yesterday . They were asking his opinion about future uses for computers .  
 Person2:Well ! I guess people don ’ t find him so peculiar anymore . 

formal