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: Do you know how to go to the Fragrant Hills in Beijing ? I heard that they are very famous in China .
Person2:Yes . Especially in autumn , the red leaves of the maple trees make the whole mountain red .
Person1: That must be very beautiful .
Person2:Yes , it can make people feel as if they were in the land of fairies .
Person1: Really ? Have you ever been there ?
Person2:A couple of times .
Person1: Can you go there with me ? I'd like someone who is familiar with that area to go with me .
Person2:Sure . I'd be very glad to be your tour guide .
[EX A]: informal

[EX Q]: Person1: Do you know that John isn't going to come back to our school ?
Person2:Really ? Why ?
Person1: He had moved and held a party on July 1st .
Person2:It's a pity that I was traveling around Europe at that time .
Person1: Even he's not coming back to school anymore , you still can call him and meet him on weekends .
Person2:You're right ! I will call him this weekend and meet him .
[EX A]: informal

[EX Q]: Person1: Mum , I have something for you today .
Person2:What for ?
Person1: Don't you remember ? Today is March 8th . It's Women's Day .
Person2:Oh . I've really forgotten it .
Person1: Now , close your eyes . ( Mum closes her eyes and Steven puts the present in her hand . )
Person2:A silk scarf . I love it . Thank you very much . My lovely son .
Person1: Happy Women's Day . I love you forever , Mum .
[EX A]:
informal