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:       Ok ... I ’ ll talk to you later . Bye 
 Person2:Carrie , are you ok ? You seem a bit down . 
 Person1:        I just got off the phone with my boyfriend . He is always getting upset and losing his temper over nothing . It ’ s so hard to talk to him at times . 
 Person2:Maybe it ’ s just that he is stressed out from work or something . He does have a pretty nerve wracking job you know . 
 Person1:        Yeah but , he is always in a really foul mood . I try to find out what ’ s bothering him or get him to talk about his day but , he always shuts down and brushes me off . 
 Person2:Men are like that you know.They can feel nervous , anxious or on edge and the only way they can express it is by trying to hide it through aggressiveness . 
 Person1:        I guess you are right . What do you think I should do ? He wasn ’ t always this grouchy you know ... 
 Person2:Talk to him , try to cheer him up when he is down and if that doesn ’ t work , I say get rid of him and get a new one ! 
 Person1:        You are something else you know that ? 

formal