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: In my country , we go to school from 8 o'clock in the morning until five in the afternoon .
Person2:Five days a week , too ?
Person1: Actually , five and a half.On Saturday , we have classes only in the morning .
Person2:Gosh !
Person1: That's too much for us really .
Person2:Where are you going now ?
Person1: I'm going to try to find out where the school is located .
Person2:When do you start school ?
Person1: I'm going to register right now .
Person2:That's good .
answer:
informal

question:
Person1: So did you get in touch with your brother ?
Person2:No , not yet . I'm really worried .
Person1: Well , it'd be foolish to call the police . He probably just went away overnight .
Person2:Maybe you're right . But I'm still worried .
answer:
formal

question:
Person1: How may I help you ?
Person2:I need to check these books out .
Person1: Do you have your library card ?
Person2:Here it is .
Person1: It appears that you have late fees .
Person2:Really ?
Person1: Yes , really .
Person2:How much do I owe ?
Person1: You owe $ 24.50 in late fees .
Person2:I don ' t have that much today .
Person1: I ' m sorry , but until you pay it , you won ' t be able to check out any more books .
Person2:I ' ll pay it as soon as possible .
answer:
informal