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'.

Example Input: 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 .
Example Output: formal

Example Input: Person1: Good afternoon . What can I do for you today , Madam ?
Person2:It's a little sensitive , actually . I need to get hold of some money , and quickly .
Person1: OK , Madam . We are here to help .
Person2:I already have some Time Deposits with you , but unfortunately , they haven't matured yet . I really don't want to cash those just yet .
Person1: I understand completely . There are other options , such as a Personal Pledge Loan .
Person2:I've not heard of that , could you tell me more , please ?
Person1: The procedure is really simple and convenient . All you need to do is fill in this Loan Application form .
Person2:Right ... anything else ?
Person1: Of course , we'll need some documentation from you . Like your resident permit , proof of salary and your USD Deposit Certificate , to use as collateral .
Person2:And then I just sign here ? You're right ! It certainly is simple and extremely convenient .
Example Output: formal

Example Input: Person1: Well , it ' s really too late . I have to go now .
Person2:Could you stay a little longer ?
Person1: Sorry , I can ' t.My mother doesn ' t want me to be late . I really have to go .
Person2:In that case , I won ' t keep you.Remember to give me a call .
Person1: Thank you for your delicious meal .
Example Output:
informal