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:       hello ! How are you today ?  
 Person2:hi . I ’ m feeling very nervous . I just had a test and I ’ m not sure how well or how badly I did .  
 Person1:        it ’ s not use worrying about it now . you ’ Ve done test and you can ’ t change any of your answers .  
 Person2:that ’ s true . I really should go home and prepare for the next test , but I ’ m feeling tired .  
 Person1:        let ’ s go and get a coffee together . That will help you to wake up again !  
 Person2:ok . I feel like sitting down and having a chat . How have you been recently ?  
 Person1:        oh , you know me . I ’ m always happy ! If I think I ’ m getting into a bad mood , I call some friends and socialize or have a chat .  
 Person2:that ’ s a good idea . I usually just sit at home alone and get increasingly moody .  
 Person1:        I hate spending too much time at home . I get bored of it really quickly . I ’ m always excited about going out to party or other social event and meeting people .  
 Person2:perhaps I ’ m being too shy . I should go out more too and not spend time worrying about tests ! 

Solution: informal