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:       How do you think should I handle this problem ?  
 Person2:You'd just let sleeping dogs lie .  
 Person1:        But I'm already in a lot of trouble with my boss .  
 Person2:Anything you say or do might make it worse . Just try to ride out the storm for a while .  
 Person1:        She's always bothering me . What should I do ?  
 Person2:You'd better leave her alone .  
 Person1:        But she always harps on me .  
 Person2:Just tell her off .  
 Person1:        Yes , great ! 

informal