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: Hey man , you wanna buy some weed ?
Person2:Some what ?
Person 1:Weed ! You know ? Pot , Ganja , Mary Jane some chronic !
Person2: Oh , umm , no thanks .
Person1: I also have blow if you prefer to do a few lines .
Person2: No , I am ok , really .
Person1: Come on man ! I even got dope and acid ! Try some !
Person2: Do you really have all of these drugs ? Where do you get them from ?
Person1: I got my connections ! Just tell me what you want and I ' ll even give you one ounce for free .
Person2: Sounds good ! Let ' s see , I want .
Person1: Yeah ?
Person2:I want you to put your hands behind your head ! You are under arrest !
Example output: informal
Example explanation: Based on the conversation, we can see that there is a presence of exclamation which is not present in a formal discussion. Therefore this is an informal conversation
Q: Person1: I love your little Lulu dolls.How much for a batch of 6,000 ?
Person2:For a batch of 6,000 we would charge two dollars a doll . your total cost would be $ 12,000 .
Person1: That ' s a little steep for our company.Do you offer any discounts ?
Person2:Well , we ' d like to work with you . If you ordered a larger quantity we could drop the price a little . Can you increase your order to 15,000 ?
Person1: Hmmm.It wouldn ' t be easy , but if the discount makes it worthwhile , we can consider it.How much of a discount would that give us ?
Person2:For order of 12,000 or more we charge only $ 1.5 a doll . your total cost would be $ 18,000 .
Person1: So , for an additional 6,000 dollars , we get twice as many dolls ? That still might be a little hard.Couldn ' t you discount it further ? We ' Ve been pricing other suppliers , and this discount might
Person2:We do value your business . I think I can offer a further discount say 5 % ?
Person1: I think we can handle that . Let me confirm with my boss and touch base with you again tomorrow .
A:
formal