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: How may I help you ?
Person2:I want to return this video .
Person1: Is that all you need ?
Person2:I also need to check these books out .
Person1: Anything else ?
Person2:That ' s everything .
Person1: I need your library card .
Person2:I have it . Here you go .
Person1: Do you need anything else ?
Person2:That ' s everything .
Person1: Your books are due back two weeks from today .
Person2:Thank you . Good night .

Answer: formal

Question: Person1: Tony looks very handsome in the suit .
Person2:He prefers suits to jackets .
Person1: Judge from his look , he's a very serious person .
Person2:As a matter of fact , he is .

Answer: informal

Question: Person1: You always stick to your PC recently . Are you still fascinated by chatting on line ?
Person2:For me , the times of chatting online has gone .
Person1: What the hell are you doing now ?
Person2:I opened my blog today . In order to have more visitors , I have to land on others ' blogs and leave my messages for their blogs .
Person1: What's new with you ?
Person2:Do you still remember Justin ?
Person1: Of course , he was our monitor in college . How is him now ?
Person2:He seemed to be dumped by his girlfriend . I found his blogs were a little sad .
Person1: Let me see . What a moving poem !

Answer:
formal