Q: 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: Hey , guys !
Person2:Hi ! Nicole !
Person1: How's business ?
Person2:Great . We can't keep up with the demand .
Person1: Wow ! I'm impressed !
Person2:How about you ?
Person1: I quit my job as a food critic .
Person2:Then let me take you out to dinner to celebrate .
A:
informal