TASK 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'.
PROBLEM: Person1: Hi , charlie , are you busy this evening ?
Person2:Sorry , I'm afraid that I've got plans tonight .
Person1: What are you doing ?
Person2:I'm going to my parents ' house for my father's birthday .
Person1: How old is he today ?
Person2:It's his 50th birthday .
Person1: Well , wish him a happy birthday for me .
Person2:Sure thing . What are your plans for the evening ?
Person1: I was just thinking of going to a movie tonight .
Person2:Well , if you can wait until tomorrow night , I'll go with you then .
Person1: Sorry , I've got people coming over tomorrow night .
Person2:Sounds like this weekend just isn't going to work out for us .
Person1: Sounds that way . Maybe some other time then ?
Person2:Sure.Hey , I'm sorry , but I've got to get going .
Person1: Yeah , me , too . It's about time I made a move .
Person2:Say hello to your friends for me .
Person1: Likewise . See you later .
Person2:Bye !

SOLUTION: informal

PROBLEM: Person1: hey , Mary , what's up ?
Person2:not much . Last night I met this great guy at the bar and we had such a wonderful time that we decided to meet again tonight .
Person1: oh , that's exciting . What's this guy like ? Is he hot ?
Person2:well , I didn't think so at first . But as we started talking , I found his extremely funny and witty . I couldn't stop laughing at his jokes ! We have so much in common . We like the same teams , music , a
Person1: it seems you two are a good match . What qualities do you look for in a friend ?
Person2:there's nothing definite I think . I don't have a list or anything , but when I first meet somebody , I can usually tell whether or not that person is going to be a good friend . It seems I have radar h
Person1: well , that's something I've never heard of . But if you as me what I value most in a friend , I would have to say honesty .
Person2:I agree . You can't expect a close relationship with a dishonest person . Those are the people that will turn their back on you when you are in need .
Person1: yeah , I know . A friend in need is a friend indeed . I don't need fair-weather friends either .

SOLUTION: formal

PROBLEM: Person1: Hi , Lilly , it ' s so nice to see you again .
Person2:Hum , me too . This winter holiday was especially long . What have you done ?
Person1: Nothing special . I had a get-together with some schoolmates at the high school , visited the Internet and read a couple of books which I had been longing for . How about yours ?
Person2:You know , I like traveling . I made good use of this long vacation and enjoyed myself .

SOLUTION:
formal