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'.
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Question: Person1: Excuse me , please.Could you tell me how to get to the No . 10 Middle School ?
Person2:Walk down this road , take the fourth turn to the right.Then you'll see it .
Person1: Is it far from here to there ?
Person2:No . It's only about five minutes ' walk .
Person1: Many thanks !
Person2:Not at all .

Answer: 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: Okay , I want to change 22,000 .
Person2:Could you please fill out this form ?
Person1: Okay , here you are . ( She hands the completed form and the money to the clerk . )
Person2:Here's your $ 200 .
Person1: Thank you very much .
Person2:Thank you .

Answer:
informal