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'.
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Question: Person1: Look , my clothes are wet .
Person2:Mine are wet , too .
Person1: Unexpectedly , a girl threw a bucket of water on me .
Person2:She wished good luck to you .
Person1: The Dai people are enthusiastic .
Person2:Yes .

Answer: informal

Question: Person1: You don ' t look like enjoying this workout .
Person2:I ' m not crazy about it at all .
Person1: You don ' t like this sort of exercise ?
Person2:I ' m not interested in it . Are you keen on it ?
Person1: Yes , that ' s funny . I thought you liked it .
Person2:I hate it .
Person1: Never mind . It ' ll be over in 10 minutes .
Person2:It ' s the worst thing I ' Ve ever tried .

Answer: informal

Question: Person1: How did you do in the last quiz ?
Person2:I doubt if I can pass it .
Person1: Don't be so worried , You know Professor Robert is not too strict .
Person2:But I often skip his classes , and he doesn't like me .
Person1: I hope you'll do better in the final .
Person2:I must , if I want to pass the course .

Answer:
informal