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:       How is everything going with your girlfriend ?  
 Person2:Didn ’ t I tell you ? It ’ s over !  
 Person1:        Oh , I am sorry to hear that . I did ’ t know that you had split up . What happened ?  
 Person2:It was a few things . The first thing that happened was that we were supposed to go out for a romantic dinner for our one year anniversary , but she stood me up !  
 Person1:        Really ! Did she tell you why she didn ’ t show up ?  
 Person2:No , but I ended up finding out later that night when I saw her with another man at a club near my home !  
 Person1:        What was she thinking ? Did you confront her about it when you saw her ?  
 Person2:I wanted to , but I knew that if I spoke to her , I'd just blow up at her , so I decided to just go home . I called her later that night , but she didn't answer the phone .  
 Person1:        I can ’ t believe she would do that to you . It ’ s so dishonest---and rude !  
 Person2:I know . I still haven ’ t heard from her . The good thing is that I ’ m so angry with her that I don ’ t feel sad about not having her around .  
 Person1:        I bet you she regrets what she ’ s done . You were such a good catch ! She really lost out , didn ’ t she ?  
 Person2:I guess so . It would be nice to know why she did this though .  
 Person1:        I know . It ’ s always nice to have some closure , but I don ’ t think you ’ ll have a problem finding another girlfriend . 

informal