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'.

Person1: Do you want to go out for dinner tonight ?
Person2:Sure . Have you got anywhere in mind ?
Person1: I'm starving , so maybe we could go somewhere with large portions .
Person2:That Italian restaurant in the city centre always has large portions . Do you want to go there ?
Person1: I'm not really in the mood for Italian , actually . I was thinking of something a bit spicy .
Person2:If you want spicy food , then I'd recommend going to a Thai , Indian or Chinese restaurant . How about that Chinese buffet on Cowley Road ?
Person1: I really like that restaurant ; you get a lot for your money there . But , they've westernized their food , so it's not actually that spicy .
Person2:You're right . Most of their dishes have sweet sauces . We could try that Indian restaurant just down the road from us .
Person1: The Taj ? They're a bit expensive , but they do serve large portions of very hot food .
Person2:The Taj it is then .
Person1: Shall we bring our own bottle of wine to save some money ?
Person2:They'll still charge us a corkage fee .
Person1: That's right . It'll probably work out to be about the same then anyway .
Person2:Don't worry about money . I'll treat you tonight .
Person1: Are you sure ? We could go Dutch .
Person2:No , I'll pay . It's my turn anyway . You paid last time .
Person1: I won't argue with that ! Let's go !
informal

Person1: Excuse me , Professor , I have a problem and need to leave class early .
Person2:Why do you have to leave early ?
Person1: I am not feeling well .
Person2:Could you make it up by attending my other section this week ?
Person1: Yes , it's all taken care of .
Person2:Are you leaving right away or can you stay for a few more minutes ?
Person1: I can stay a few more minutes .
Person2:OK , but please make sure that you get all of your make-up work completed .
Person1: Thanks , Professor . I've got it covered !
Person2:Go do what you have to do , but make sure it doesn't happen again .
formal

Person1: What sport do you like the most ?
Person2:I like baseball the best .
Person1: Me too . Did you play when you were a kid ?
Person2:Yeah . I played until I graduated from high school .
Person1: What position did you play ?
Person2:I think I tried every position , but the last few years , I played third base .
Person1: I hate third base . It's scary when the ball is coming at you so fast .
Person2:It was scary at first , but after awhile , I got used to it . If you have fast reflexes , then it's not really a problem . What position did you play ?
Person1: I played outfield . I hated the infield because I never figured out all the bounces .
Person2:I wish I could play again , but there isn't much opportunities around here .
Person1: I'm on a softball league . It's not fast pitch , but it's still fun . You wanna join our group ?
Person2:When do you guys play ?
Person1: We play either Tuesdays or Thursdays .
Person2:Sounds pretty fun . I'll come out and join you next time .
informal