TASK DEFINITION: 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'.
PROBLEM: Person1: Hi ! Dick . Where are you going ? You're in such a hurry .
Person2:Playground . We're having sports for today's outside class activities . All my classmates have already got there .
Person1: What are you going to play ?
Person2:Some of us will play basketball and some volleyball .
Person1: Enjoy yourself .

SOLUTION: informal

PROBLEM: Person1: I'm sorry , but I can't go .
Person2:Why not ?
Person1: I have to see my daughter .
Person2:When poyou have to see her ?
Person1: I have an appointment at one fifteen .

SOLUTION: formal

PROBLEM: Person1: You're going to Shanghai tomorrow , are you ?
Person2:That's right . Do you think it'll be cold ?
Person1: It might be . You'd better take a heavy sweater with you.The nights are usually quite cold at this time of year .
Person2:Do you think I'll need a cotton coat ?
Person1: Not for now , I think , But I believe there'll be rain , so take your raincoat with you .

SOLUTION:
formal