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 , Jordan , is that you ? Long time no see !  
 Person2:Oh , hey , no kidding ! I haven't seen you since orientation three months ago ! So how've you been ? Settling into college life OK ?  
 Person1:        Yeah , I think so ! I pledged Phi Iota Alpha , so I'm living at the frat house now .  
 Person2:Oh , so you're a frat boy now , huh ?  
 Person1:        Yeah , yeah , I know , it's totally cliche , but really , I think it's been a good decision . I've got a lot of support and good suggestions from the guys . What about you ? What have you been up to ?  
 Person2:Not much . I'm still living at home and commuting to school . I ended up dropping that metalworking class I was so excited about . It just wasn't as interesting as I'd hoped . The guidance counselor suggested that I focus on my prerequisite courses so that I can make sure the credits count .  
 Person1:        That sounds smart ... but kind of boring .  
 Person2:Yeah , it is , a little bit . I joined the Great Outdoors Club , though , which has been a lot of fun . We've gone on two camping trips already , and I've made some good friends .  
 Person1:        That's cool . Hey , so have you decided on your major yet ?  
 Person2:Definitely pre-med . What about you ?  
 Person1:        I still have no clue ... but we don't have to declare a major till our sophomore year , so I've got time ! Oops , I'm late for class . Gotta run !  
 Person2:OK , take care ! Hey , nice running into you !  
 Person1:        Yeah , you too ! 

informal