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:       Can you believe the headlines ?  
 Person2:What are you reading ?  
 Person1:        I ’ m reading about Michael Milliken , the Bond King .  
 Person2:Didn ’ t he sell worthless stocks to people or something ? He got arrested for that , didn ’ t he ?  
 Person1:        He got arrested all right .  
 Person2:If I remember , he got off with a light sentence . Something like three years in a minimum-security prison .  
 Person1:        Yup , that ’ s him . He made millions of dollars selling bonds to people and ended up with a pile of cash when they became useless .  
 Person2:I think the government fined him a small amount , and he kept the rest in his foreign bank accounts . He ’ s still a millionaire .  
 Person1:        That ’ s the kind of thing in America that gets me mad . Some guy pulls off a stock scheme and makes millions while spending the bare minimum sentence in jail .  
 Person2:I know . And some poor guy that robs a liquor store makes $ 500 at most and ends up in jail for five to ten years . 

informal