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: Hi , Jason !
Person2:Hi , Linda . I have two concert complimentary tickets . Will you go with me tonight ?
Person1: With the greatest pleasure ! Where is the concert held this evening ?
Person2:It will be held at the Central Music Hall .
Person1: What is on the program ?
Person2:It ' s a piano solo . I'm fond of piano , you know .
Person1: Hah ! OK . Let ' s go together !
Person2:Let ' s meet at the park at 6:00 .
Person1: See you then .

A: informal
****
Q: Person1: Hey ! What's up ?
Person2:Hi , John ! I haven't seen you for ages .
Person1: Yeah , I've been out of town .
Person2:So how have you been ?
Person1: Great ! Work is really busy now , but it's fun .

A: informal
****
Q: Person1: Ben , what are you doing ?
Person2:Well , I would say that I ' m just drifting - - here , in the pool .
Person1: Why ?
Person2:Well , it ' s very comfortable just to drift here .
Person1: Have you thought about graduate school ?
Person2:No .
Person1: Would you mind telling me then what were those four years of college for ? What was the point of all that hard work ?
Person2:You got me .
Person1: Now listen , Ben . Look , I think it ' s a very good thing that a young man after he ' s done some very good work should have a chance to relax and enjoy himself , and lie around , and drink beer and so on . But after a few weeks I believe that person should want to take some stock in himself and his situation and start to think about getting off his ass .

A:
informal
****