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: I don't think much of the film .
Person2:But I think it wasn't too bad .
Person1: Really ? Do you like the story ? It's sheer nonsense !
Person2:It's exaggerated . Actually this sort of thing happens to everyone .
answer:
informal

question:
Person1: I always think everybody looks down on me
Person2:Don't be that negative .
Person1: How can you be optimistic ? You can see it in their eyes .
Person2:I find it there is no meaning in living this world .
Person1: Don't be that negative .
Person2:Really , life is so boring .
answer:
formal

question:
Person1: Are you busy with your work ?
Person2:Yes . What about you ?
Person1: Yes , I'm very busy , too . Sometimes I work overtime .
Person2:Then your salary must be high .
Person1: Just so so . But we can travel twice every year .
Person2:Is this time one of them ?
Person1: Yes , we won't travel again until October .
Person2:Really ? We have only one chance every year .
answer:
informal