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:       Did you hear what happened in the Scott case ? Some of the sensitive material were leaked to the press . Now every newspapers is all over it .  
 Person2:Oh ... I bet the firm is fuming . Do they know who spilled the beans ?  
 Person1:        I'm sure they have their suspicions ; there were only a few of the senior level layers who were privy to the case details .  
 Person2:What kind of repercussions will there be for the people who are held responsible ?  
 Person1:        I'm sure there'll be canned ! And there also might be some legal consequences .  
 Person2:Why would the person who told have problems with the law ?  
 Person1:        Because whoever let the cat out of the bag was breaking client confidentiality .  
 Person2:I didn't think about that . That's pretty serious . Are there investigators working on finding out who it was ?  
 Person1:        I'm sure management is on top of it . 

formal