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:       Have you ever thought about Tom ’ s attitude ?  
 Person2:I ’ Ve cut it upland come to the conclusion that hi is actually sick of Jenny ’ s brother . But he likes Jenny . She is a big apple in his eye .  
 Person1:        Love me , love my dog . He ’ s a sensible kind man .  
 Person2:That ’ s why many people look up to him . 

formal