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: 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 solution: 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

Problem: Person1: I need to know why I'm being charged $ 10 for a movie that I never ordered .
Person2:Hmm . Your file shows that you watched ' Titanic ' Monday night .
Person1: Monday night ? Monday night I was at a great concert .
Person2:Well , as they say , garbage in , garbage out . Let me correct this error , please .
Person1: Thank you . It's very nice when problems can be solved quickly .
Person2:When I deleted the $ 10 , the computer automatically added a $ 2 service charge .
Person1: Are you crazy ? You made the mistake and now you're charging me for your mistake ?
Person2:Sir , if it makes you feel any better , the $ 2 service fee used to be $ 5 .
Person1: Why don't you just stick a gun in my ribs and take everything I have ?
Person2:Unfortunately , sir , you'll have to pay the $ 2 , whether you like it or not .
Solution: informal