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:       Management is going through a big turnover these days . With Bill's retirement , and department realignment , we have lost about 1/3 of our managerial staff . They've been dropping like flies ...  
 Person2:Isn't that a good thing ? Having fewer bosses means having less stress , don't you think ?  
 Person1:        Actually , I don't think so . Supervisors are really important to make sure everything goes smoothly in the workplace . They are necessary for divvying up work and disciplining employees . If there is no one to keep an eye on us , no one would get any work done . You know what they say , when the cat's away , the mice play .  
 Person2:You're right , we do need leadership . But what we don't need is too many people to lead us . You know what they say about too many chiefs and not enough Indians ...  
 Person1:        Alright ... I get your point . 

formal