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:       Hey Sarah . Why are you limping ? 
 Person2:Oh . Hi Matt . I went snowboarding yesterday and my whole body aches . 
 Person1:        Was it your first time ? 
 Person2:Yeah . And I never want to go again . 
 Person1:        I remember the first time I went . My back was sore , I couldn't sit down because it hurt my butt , and my legs would cramp if I walked too fast . 
 Person2:That's exactly how I feel now . 
 Person1:        It's only like that the first couple of times . 
 Person2:Ha . There won't be a next time . 
 Person1:        You gotta give it a chance . It's fun after awhile . 
 Person2:I'll think about it after I start feeling better . Right now , I don't even want to hear the word snowboarding . 

informal