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'.
Input: Person1: My goodness ! You ' re kidding !
Person2:No . I ' m serious . I ' m going to quit my job .
Person1: That ' s amazing ! You got a good pay here , didn ' t you ?
Person2:It ' s true . But I can ' t show my abilities .
Person1: Come on ! Don ' t be silly !
Person2:Your present job is something better . Why do you change ?
Person1: Well . How do you know ?
Output:
informal