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: Would you like me to fill out the form ?
Person2:I suppose so , but don't rush . I've got to tell you how to do it .
Person1: That's very kind of you .
answer:
informal

question:
Person1: Do you think I should buy this now and bring it with us ?
Person2:Don't bother . those are a dime a dozen where we are going .
answer:
formal

question:
Person1: Hello , Pam .
Person2:I'm glad that you can make it .
Person1: It looks like there are a lot of people inside .
Person2:Yeah . I've invited a lot of friends besides you .
Person1: Should I take my shoes off ?
Person2:We all keep our shoes on indoors .
Person1: Where are your parents ?
Person2:They've gone out so that we could have the house to ourselves .
Person1: That's great !
answer:
informal