Detailed Instructions: 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'.
See one example below:
Problem: 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 !
Solution: informal
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 hear you bought a new house in the northern suburbs .
Person2:That ' s right , we bought it the same day we came on the market .
Person1: What kind of house is it ?
Person2:It ' s a wonderful Spanish style .
Person1: Oh , I love the roof tiles on Spanish style houses .
Person2:And it ' s a bargaining . A house like this in river side costs double the price .
Person1: Great , is it a two bedroom house ?
Person2:No , it has three bedrooms and three beds , and has a living room with a twelve-foot ceiling . There ' s a two-car garage .
Person1: That ' s a nice area too . It ' ll be a good investment for you .
Person2:Yeas , when will you buy a house ?
Person1: Not untill the end of this year , you know , just before my wedding .
Person2:Right , congratulations .
Person1: Thank you .
Solution:
informal