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:       But his wife has wide relations . You may ask her for advice .  
 Person2:Stop talking about her . She gives me goose bumps . I never wish to be in her sight .  
 Person1:        She is pretty . Many men praise her highly .  
 Person2:Many people , many tastes . She looks pretty , but the way she speaks gives you goose bumps . I feel sick of it . 

informal