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:       It seems that something is praying heavy on you.What ’ s the matter ?  
 Person2:I got my father ’ s goat last night .  
 Person1:        What did you do to get his goat ?  
 Person2:When I asked him to treat me like he does to my sisters , he jumped down my throat . So I took it out on him by telling him what I thought . 

formal