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:       All right , let's see who's ruining my TV time .  
 Person2:What are you going to do ? Call my boss and chew him out ?  
 Person1:        Is your boss named Vic ? Your pager says , This is Vic . Here I come !  
 Person2:Impossible . My pager is really old . It doesn't display messages .  
 Person1:        Here , see for yourself . That's really strange ! It's almost the same as when I ...  
 Person2:Gosh , you're right ! It's from some guy named Vic . I wonder who he is ... 

informal