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 , Paul , why the long face ?  
 Person2:It's difficult to explain .  
 Person1:        Try me .  
 Person2:Well , I had a terrible day of work , I'm thinking of quiting my job .  
 Person1:        Take it easy , maybe tomorrow will be different .  
 Person2:I don't know , I can't stand my job these days .  
 Person1:        Cheer up , I hope you'll feel better soon . 

informal