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:       You didn't tell me she was married ! 
 Person2:I tried . You were preoccupied . 
 Person1:        I got carried away . I made such a fool of myself . They were both laughing at me ! 
 Person2:You got drunk , and you were hilarious . Lighten up . 
 Person1:        That guy was definitely a Don . 
 Person2:So now you can say you had a mafia experience . Ha-ha . 
 Person1:        Yeah . If I leave Little Italy alive ... 
 Person2:Are you kidding ? Don had fun scaring you . He'd probably buy you dinner if we go back . 

informal