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:       Who was the best teacher that you ever had ? 
 Person2:That would have to be Miss Baymler , my fourth grade teacher . 
 Person1:        What was she like ? 
 Person2:She was patient , kind , fun , smart , caring , and yet strict , too . I really learned a lot from her . 
 Person1:        What kind of things did you learn ? 
 Person2:She taught us that you can do anything that you want to do . 
 Person1:        Anything ? Do you really believe that we can do anything ? 
 Person2:If you really want to do something and you work hard at it , I believe you can do it . 
 Person1:        You said she was strict . Did she have a lot of rules ? 
 Person2:She had some rules that helped us to feel comfortable . For example , the students had to treat each other with respect , or they would be disciplined . 
 Person1:        I see . She sounds like she really cared about her students . 
 Person2:Yes . She treated us all fairly . She don ’ t have any teacher ’ s pets . 
 Person1:        Really ? Doesn ’ t every teacher have a teacher ’ s pet ? 
 Person2:Well . To be honest , I usually sucked up to teachers because I wanted them to give me good grades . However , Miss Baymler didn ’ t treat me any differently . She really didn ’ t have any teacher ’ s pets . 
 Person1:        Do you know what she is doing now ? 
 Person2:As a matter of fact , I do . After she taught our class , she got married and moved to another city . Then , she started writing children ’ s book . 
 Person1:        Have you ever read one of the books ? 
 Person2:Of course ! Both children and adults enjoy her books . 
 Person1:        Why don ’ t you recommend one to me ? 
 Person2:ok ! I ’ ll bring one to you next time . 

informal