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:       Hey , Vernassa . why be angry look ?  
 Person2:It's the new neighbor . I hate her guts .  
 Person1:        I've never seen you so worked up . what did she do to you ?  
 Person2:She made another white crack about my clothes .  
 Person1:        Are you sure she was trying to put you down ?  
 Person2:Of course , I am sure .  
 Person1:        You shall go easy on her . she is new here .  
 Person2:Just how am I supposed to do that ?  
 Person1:        You shall just take it in surprise .  
 Person2:I've tried , but she keeps pushing my buttons .  
 Person1:        Try to pull it together , Vernassa . I am sure things will turn note , ok ?  
 Person2:I am not . she is no picnic .  
 Person1:        Well . if you think I can help , let me know .  
 Person2:Thanks , Serena . 

informal