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:       I heard that Ann had divorced . 
 Person2:I suspect it's unavoidable . 
 Person1:        Poor Ann . She did not love her husband at all . 
 Person2:Yeah . She married him at her mother's bidding . 

informal