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: Professor , can you help me add your class ?
Person2:You have to bring me an add sheet to sign . Do you have one ?
Person1: No , I will have to get an add sheet .
Person2:You must take the signed add slip to the Admissions and Records Office to add the class . Do you know where that is ?
Person1: No , I don't know where that is .
Person2:The office is in front of you as you cross the quad . The signs in the hallway will tell you where you need to be .
Person1: I think I can find it .
Person2:You'll find it easily . Make sure you add the class and then we will look at the roll sheet later to make sure that you were added on .
Person1: Thank you for letting me add your class .
Person2:To drop a class , you need to do the same thing with a drop slip . Good luck !

SOLUTION: formal

PROBLEM: Person1: When can we expect you for dinner ? Can you come tonight ?
Person2:Not tonight . I promised to go to a concert with my sister .
Person1: Well ... How about Friday then ?
Person2:That sounds fine .
Person1: Good . Shall we say seven o'clock ?
Person2:I'll be there . You're still a fabulous cook , aren't you ?
Person1: That'll be for you to decide . I've got a new dish that I want to try out on you .
Person2:I'm ready . I'll look forward to it all Friday !

SOLUTION: informal

PROBLEM: Person1: The idea about Friday the Thirteenth is totally ridiculous . I don't believe it at all .
Person2:Maybe you can't be so sure .
Person1: Why not ? The whole idea is superstitious .
Person2:But some people use this occasion to create trouble . Have you heard of the Black Friday Virus on the computer ? It is designed to break out on every Friday the Thirteenth .
Person1: I know that . But that has nothing to do with being unlucky . Those who created the virus are deliberately making fun of people .

SOLUTION:
formal