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'.

Q: 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 !

A: formal
****
Q: Person1: Would you like to come over for dinner tonight ?
Person2:Sure , but I have to tell you that I've become a vegetarian . I don't eat any kind of meat .
Person1: When did you decide to become a vegetarian ?
Person2:I saw a program a few months ago about how animals are raised for human consumption . I haven't been able to eat a single piece of meat since .
Person1: That's great . Do you find that you eat a lot more fruit and vegetables now ?
Person2:Definitely . I've also been buying organic fruit and vegetables , which is more expensive , but much better for you because they don't have any pesticides on them .
Person1: You've really turned into a health nut , haven't you ?
Person2:I guess you could say that . Eating fruit and vegetables helps keep you healthy . I've lost 5 pounds and I feel great !
Person1: How do you get enough protein in your diet ?
Person2:Well , I eat a lot more tofu , beans , nuts and some fish .
Person1: Well , don't worry about dinner . I'll only make vegetarian dishes for you . Do you like sushi ?
Person2:I prefer cooked fish to raw fish , but if you really like it , make it .
Person1: How about a spicy tofu and vegetable stir-fry ?
Person2:That sounds great . What time should I come over ?
Person1: Dinner will be ready at about 7:30 pm , so you can come over at 7 p . m .
Person2:Sounds good . See you there !

A: informal
****
Q: Person1: Good morning , my name is Martin . You've applied for the Laboratory Assistant's position , right ?
Person2:Yes . When I saw the advertisement I thought it would really suit me .
Person1: Can you tell me why you replied to our advertisement ?
Person2:I think that I'll be really good at this kind of work . In fact I learn so fast that I'll be looking for promotion very shortly .
Person1: Do you know exactly what you would be doing as a Laboratory Assistant ?
Person2:A laboratory assistant helps to maintain scientific equipment , keep a check on the supplies in the store , and prepare the chemicals for experiments .
Person1: What sort of student do you regard yourself as ? Did you enjoy studying while you were at school ?
Person2:I suppose I'm a reasonable student . I passed all my tests and enjoyed studying subjects that interested me .
Person1: What were your favorite subjects at school ?
Person2:Maths and chemistry were my favorite subjects at school . I also enjoyed history .
Person1: Do you have any plans for further study ?
Person2:Well , I've thought about doing the part-time Chemistry Certificate course at Technical College . I think I would really benefit from doing that .
Person1: Have you ever had a job before ?
Person2:Yes . I have worked part-time at a take away food store-the one just round the corner .
Person1: We have a lot of other applicants for this position . Why do you think that you deserve to get the job ?
Person2:Well , I've found out a lot about this type of work and my research suggests that I would be quite capable of doing the work involved . I also think that I would be able to handle any training course reasonably well .
Person1: I think I have asked you everything I wanted to . Thank you for coming along to the interview .
Person2:Thank you . When will I know if I am successful ?
Person1: We'll be in touch with you by telephone or by mail within a week . Well . Goodbye .
Person2:Goodbye .

A:
formal
****