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: Isabelle , you know I'm not interested in fame .
Person2:Well , you don't seem to be interested in getting a real job , either .
Person1: You know I'm interested in teaching . I'm looking for jazz students ...
Person2:Yeah , and every high school student in town is banging on your door , right ?
Person1: I know they're out there . I'll find them .
Person2:You're such a dreamer ! You think that you can spread the word of jazz in an underpass ?

Answer: formal

Question: Person1: Is the environment a big issues in your country ? It is in mine .
Person2:It is in mine too.The biggest issue is water . The climate is dry and so water conservation is very important .
Person1: What methods do you use to conserve water ?
Person2:Water is rationed . We can only use a certain amount each month . It means that we cannot use some modern household items , like washing machines . They use too much water .
Person1: I see . I think the biggest environment problem in my country is air pollution .
Person2:Yes , I agree . The air here is much more polluted than in my country . Of course , my country is more agricultural and has much less industry .
Person1: We have reduced emission of air pollutants in recent years , but cars are still a major source of them . Factories have become cleaner as stricter environment pollution law have been introduced .
Person2:The problem is now on a truly global scale . I don ' t believe that any single country can do anything about it .
Person1: I think you ' re right . There needs to be an international response to this problem .

Answer: formal

Question: Person1: Foreign Currency Deposits Counter , yes . What can I do for you ?
Person2:You see , I have these Euros , and of course they are of no use to me at the moment . So I'd like to save them in my account , but I'm not sure how to go about it .
Person1: OK . We offer 2 types of saving systems , Time Savings and Demand Savings . With Time Savings your money cannot be withdrawn for a certain period of time , but with Demand Savings your money is ' on demand ' , you can withdraw at any time .
Person2:I see . What's the interest like on those ?
Person1: There's quite a large difference . I mean , if you were to use demand deposit we could give you 0.13 % interest , but for a time deposit , of say , 1 year we would offer 0.82 % .
Person2:Yes , I couldn't agree with you more . A 1 year time deposit it is !

Answer:
informal