instruction:
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'.
question:
Person1: Hi , Lander . What's wrong ?
Person2:I can hardly make ends meet these days .
Person1: Same here . I have't brought any new clothes for three months .
Person2:My income remains the same but prices just continue to rise .
Person1: True . The news says that there is a general increase in the price of daily necessities .
Person2:Definitely . I have to spend 300 yuan more on food every month .
answer:
formal

question:
Person1: So , what happened ?
Person2:He never came .
Person1: He stood you up .
Person2:I wouldn ' t exactly characterize it in that way . I think something happened . Something terrible and unexpected that made it impossible for him to ... what if he showed up , took one look at me and left ?
Person1: Not possible .
Person2:Maybe , there was a subway accident .
Person1: Absolutely .
Person2:A train got trapped underground with him inside .
Person1: And no phone .
Person2:And you know , how those express trains create suction .
answer:
informal

question:
Person1: Bill , your work is too messy .
Person2:I'll pay attention to my handwriting next time .
Person1: Is this a promise ?
Person2:Yes , I'm serious this time .
answer:
formal