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:       Henry , don ’ t get out of doing housework . 
 Person2:It ’ s none of my business . 
 Person1:        You mean that is my business . 
 Person2:I don ’ t say that . But it seems to me the housewife should do that . 
 Person1:        I ’ m your wife , not a housewife . I have my own work . 
 Person2:Hum ... 

informal