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'.

[EX Q]: Person1: Good morning , Mary !
Person2:Good morning , John !
Person1: I want to have a few friends over for a dinner party to celebrate my birthday . Would you be able to come the next weekend on Saturday ?
Person2:I'd be delighted to , John . Saturday did you say ?
Person1: Yes , if that's all right for you .
Person2:I'm pretty sure I'll be all right . In fact , I'd be delighted to come over and celebrate your birthday with you . What time are you planning to start ?
Person1: Oh , good . If you could come around six thirty or seven o'clock , that would give us some time to chat a whit over a glass of wine before dinner .
Person2:That sounds fine . I'll be there around seven .
[EX A]: informal

[EX Q]: Person1: Wake up sleepyhead.The sun is beginning to shine . What a lovely summer day !
Person2:Yeah , clearly blue sky.But it is a bit too hot for me . I don't like heat and humidity .
Person1: It's not that hot . It's cooler than yesterday . Let's go swimming !
Person2:That's a thought . It's still early , and the beach isn't crowded at this time of the day . If we don't stay too long , we won't get sunburned .
Person1: Yeah , sounds like fun . I can wear my new pink bikini .
Person2:There won't be anyone there to appreciate how cute you are .
Person1: Who cares ! Well , the smart guys get there early . That's the kind of guy I want to meet . Let's go !
Person2:If you are going to husband hunting in a bikini , then I want to wear one , too .
Person1: Ok , you could borrow one of mine .
Person2:Thanks , how about the green and black one ?
Person1: No problem . Here it is .
[EX A]: informal

[EX Q]: Person1: Hi , Jenny . Are you going to school now ?
Person2:Yup . I have English at 9 in the morning .
Person1: Got any plans after the class ?
Person2:Not really . What about you ?
Person1: We will have our midterm exams next month . I plan to look for some important books and study at the library . Do you want to join me ?
Person2:Sure . I need to return some books . They are due today . Besides , I can also read some weekly publications , magazines and newspapers .
Person1: Great . We can go to the swimming pool in the gymnasium after that .
Person2:That sounds like a good idea . We can chill out a little in such a hot summer . Are you good at swimming ?
Person1: Well , that's a good question . I haven't swum for almost two years . I think I need more practice .
Person2:Oh , it's almost 9 . I need to hurry . I am running late now . See you after class in front of the library then . Bye !
Person1: See you then .
[EX A]:
informal