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:       I have never you mention this friend . Are you on very good terms with him or her ? 
 Person2:We have been on good terms . She is a very nice girl . But she got in Dutch with her boss . I don ’ t have the heart to see her pounding the pavements . 
 Person1:        You must be stuck on her , or you would not use your elbow grease . 
 Person2:Well , we hit it off with each other . Nothing more , nothing much . 

formal