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: Well , Peter , you have to do better than that next time , won ' t you ?
Person2:Have I really got to do those exams again , Dad ?
Person1: Of course , you have . You must try harder this time .
Person2:And must I go back to school ?
Person1: No , you needn ' t do that . You ' d better get a part-time job somewhere and go to evening classes .
Person2:But Dad , I should be working full-time at my age . I ' m nearly 17 .
Person1: You ought to have worked harder then you wouldn ' t have failed your exams . You have to take a job and study .
Person2:What else I ' Ve got to do ? Join the army ?
Person1: Who knows ! That might come to later .
answer:
informal

question:
Person1: Oh !
Person2:What fools we were !
Person1: To think of it ! All my old silver ! It meant so much to me .
Person2:And my new car . To think that he simply drove off with everything in my car . That's what hurts me most .
Person1: What's so terrible too , is the fools we've made of ourselves .
Person2:I hardly dare call the police . They'll just laugh at us .
Person1: I'll never get over it . Oh , Harry , it was all so unnecessary . That man ! ! How could he do this to us after we'd put him up ?
Person2:And his story didn't even hold together . I feel such an idiot .
answer:
informal

question:
Person1: We ' Ve been over this a thousand times . The data is irrefutable ! Look , we ' Ve done extensive research , built studies , and read the literature , and there is conclusive evidence to support my theory !
Person2:Horowitz , I beg to differ . Even in your most recent study , the investigative approach was flawed ! You know as well as I do that the collection of data was not systematic , and there is a large margin of error . To draw a definitive conclusion based on that data would be misleading
Person1: That is preposterous !
Person2:You are trying to single-handedly solve one of the world ' s greatest mysteries , and yet you are oblivious to the fact that you are wrong !
Person1: I am not wrong ! The chicken came first !
Person2:No ! The egg came first !
answer:
informal