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 did your interview go ?  
 Person2:pretty well . I don't know if I'll get the promotion or not , but I feel good about it .  
 Person1:        if you get the promotion , what will your new title be ?  
 Person2:if I get the promotion , I will be a senior engineer instead of an assistant engineer .  
 Person1:        will you get a pay-raise , too ?  
 Person2:whenever you are given added responsibilities , you should get a promotion .  
 Person1:        that makes sense . Who interviewed you ?  
 Person2:my boss .  
 Person1:        what kinds of questions did she ask you ?  
 Person2:she asked me about my ability to work in a team and what I thought a good boss should be .  
 Person1:        the second one sounds rather difficult to answer . What did you tell her ?  
 Person2:I told her that I'm an excellent team player and that a good boss should treat male and female employees equally .  
 Person1:        those are good answers . How did she react ?  
 Person2:she told me that even when I become a senior engineer , I'll have to work with the assistant engineers as a team .  
 Person1:        what do you think about her as a boss ?  
 Person2:she's pretty easy to get along with . She listens to her employees and treats everyone equally .  
 Person1:        you're lucky . Not everyone has such a great boss !  
 Person2:that's true . She's highly esteemed among everyone at my company .  
 Person1:        when you find out you get the promotion or not , let me know .  
 Person2:I will do . 

informal