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'.
Problem: Person1: Do you like jazz , Tom ?
Person2:No , I don't like it very much . Do you ?
Person1: Well , yes , I do . I'm a real fan of Wanton Marsalis .
Person2:Oh , does he play the piano ?
Person1: No , he doesn't ! ! ! He plays the trumpet . So , what kind of music do you like ?
Person2:I like rock a lot .
Person1: Who's your favorite group ?
Person2:The Cranberries . I love their music . How about you ? Do you like them ?
Person1: No , I don't . I can't stand them ! !
Solution:
formal