Given the task definition and input, reply with output. 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'.

Person1: Mary ? Are you still there ?
Person2:Yes . What do you want ?
Person1: Did your bid win ?
Person2:What do you care , dork ?
Person1: Hey ! I'm trying to be nice , and you still want to fight ! Did you get the statue or not ?
Person2:You mean fat boy ?
Person1: Sorry . I take that back . I mean the copper Buddha you wanted .
formal