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: Tom , you're my good friend , right ?
Person2:Sure . What's the matter with you ?
Person1: The exam ! The terrible exam ! I'm not ready yet . Can you tell me how to get good marks ?
Person2:Don't be so nervous ! Relax ! First , sleep early at night . Second , study two hours a day after school . Third , don't tire yourself out , but don't be lazy . Will that help ?
Person1: Yes , thank you .
A:
informal