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:       What did you say when she told you the news ?  
 Person2:I calmed up . And finally , I asked her to chew the cud for such an important decision . I could not have the heart to disappoint her with a blunt refusal .  
 Person1:        But I put my foot down and insisted on her forgetting that .  
 Person2:How could have the heart to do that ? She needs warmth and help . 

formal