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'.

[EX Q]: Person1: Will they send me a form telling me that I have been granted unemployment ?
Person2:A Notice of Unemployment Insurance Award letter will be sent to you .
Person1: What information will be in that letter ?
Person2:The Award Letter will inform you as to how much you will receive .
Person1: What other forms will I need to turn in ?
Person2:Every two weeks you will receive a Continued Claim Form that you must turn in .
Person1: What will they be asking me on that form ?
Person2:You must show that you were available and that you looked for work .
Person1: What else will they ask me ?
Person2:One of the questions they ask you is if you were well enough to work .
[EX A]: formal

[EX Q]: Person1: Hello !
Person2:Is that the box-office ?
Person1: Yes .
Person2:I'd like to book two tickets for the film ' Jane Eyre ' for this evening , please .
Person1: Just a minute please . Oh , I'm sorry , all the tickets for tonight have been sold out .
Person2:What a pity ! How about tomorrow evening ?
Person1: Oh , you're lucky , there are just two tickets left . Do you want to take them ?
Person2:Wonderful , I'll take them .
Person1: OK , your name and telephone number please .
Person2:Wang Min . Telephone number is 13811658 . Can I pick the tickets this afternoon ?
Person1: Yes , of course .
Person2:Thank you very much .
[EX A]: informal

[EX Q]: Person1: It's said that the government will clamp down on the new policy .
Person2:Are you sure of that ?
Person1: I am not certain about that .
Person2:They may have some difficulty in doing it .
[EX A]:
formal