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 don't have my homework today .  
 Person2:You usually are good about turning it in ; what happened ?  
 Person1:        I was really sick .  
 Person2:But couldn't you have done it when you felt better ?  
 Person1:        Yes , I probably could .  
 Person2:You have already missed one other assignment ; when can I expect the make-ups ?  
 Person1:        Next class meeting .  
 Person2:That will be soon enough , but make sure you get next week's assignment in as well , all right ?  
 Person1:        That would work for me .  
 Person2:Good . I know that you are capable of being an excellent student . 

Solution: informal