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: I have a problem .
Person2:What's the problem ?
Person1: My mattress was supposed to be delivered today .
Person2:Is there a problem ?
Person1: The delivery people showed up four hours late .
Person2:I apologize for their tardiness .
Person1: I was late for work because of them .
Person2:Again , I do apologize for the inconvenience .
Person1: I want my money back for the delivery .
Person2:Seeing as they were late , that won't be a problem .
Person1: It shouldn't be a problem .
Person2:I'm going to refund your money right now .
A:
formal