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: Have you noticed the Mexican restaurant on the other side of this street ?
Person2:You mean the one with the yellow bricks ? But last time I saw it , it wasn ' t really in business yet . I saw some people inside furnishing the rooms . Is it open now ?
Person1: Yes , someone give me a pamphlet introducing the restaurant and its business hours when I passed by this morning.So , let ' s have a try . My treat .
Person2:Great , I like the idea of trying some new food .
Person1: Good for you . Today we have more chances to try some new food because there are now many new form restaurants in our city coming from places all over the world .
Person2:Also some traditional Chinese food , like noodles and dumpling are marketed in modern ways with improved food quality . I heard this year , the government has imposed very stringent inspection on the hygiene conditions restaurants and suppliers of food are also under tighter control .
Person1: For sure all the customers will benefit from this .
Solution: informal