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:       Hi ! Ed , what's up ? 
 Person2:Nothing . 
 Person1:        Doesn't look like it to me . 
 Person2:Just get out of my face ! 
 Person1:        Woo , easy . 
 Person2:Leave me alone ! 
 Person1:        What are you so ticked off about ? 
 Person2:I don't want to talk about it . 
 Person1:        Maybe I can help . 
 Person2:I blew the finally exam . 
 Person1:        You've got to be joking . 
 Person2:No , I'm not . 
 Person1:        Well , don't get bend on a ship about it . 

informal