Detailed Instructions: 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: Why do you want to spend your summer days in a mountain village ?
Person2:I think a mountain village is splendid !
Person1: I don't agree with you . It's too small to live .
Person2:It has fresh air , and it is nicer than a big town .
Person1: I disagree , a big town is more lively .
Person2:But I like the small mountain village . The big town is noisy . How charming it is when walking along the hill !
Person1: Well , alright , I agree with you about that , but I still prefer a big town .
A:
informal