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: How may I help you ?
Person2:I need to return these books .
Person1: Give them here .
Person2:Here they are .
Person1: It appears these books are two weeks late .
Person2:I forgot they were due .
Person1: You do realize you are going to have to pay late fees , right ?
Person2:How much is the late fee ?
Person1: The late fee is 25 cents a day .
Person2:So I have to pay 25 cents for each day the books are late ?
Person1: It ' s 25 cents for each book .
Person2:That ' s a lot of money .
A:
informal