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 , Jimmy , you've been sitting in front of the TV all day . Anything interesting on TV ?  
 Person2:not really . Quite boring right now , actually . Mostly infomercials and public service announcements .  
 Person1:        why don't you turn off the TV and get outside ? You need to get some fresh air .  
 Person2:I know , I know.But my favorite show is on in a couple of minutes . It's the series finals , and I wouldn't miss it for the world !  
 Person1:        Really ? What's the series about ?  
 Person2:well , it's about how an immigrant girl achieve her dream in America . It's a sitcom but really quite smart and really funny . I think you'd like it .  
 Person1:        it sounds interesting , but I am not a big fan of TV shows . They're time consuming and don't have much depth .  
 Person2:I believe some shows are quite informative and interesting . Take this show for example , it examines American xenophobia and how it might conflict with the American dream , with hilarious results .  
 Person1:        really ? that's interesting !  
 Person2:yeah.Oh , here it comes ! why don't we watch it together ? they are going to have a court debate in this episode . It should be good .  
 Person1:        OK , I'll give it a go . 

informal