Definition: 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'.
Input:  Person1:       Mom , this is your third bowl of rice !  
 Person2:I know but I have no choice . My stomach just keeps crying for more and more .  
 Person1:        Why ? I never saw you eat so much before .  
 Person2:I've been going to the gym these days . The exercise makes me hungry all the time .  
 Person1:        So your stomach is the one that actually gets a lot of work-out .  
 Person2:Don't pull my leg .  
 Person1:        This way you'll probably put on more weight . Will you give up ?  
 Person2:Surely not . I can feel the results . I'm starting to feel different now .  
 Person1:        Then how are you gonna deal with the problem of getting extra weight ?  
 Person2:I'm planning to meet my personal trainer to have the work-out plan fixed .  
 Person1:        Oh , I've got an idea . Why don't you ask Dad to go with you ? He badly needs some exercise .  
 Person2:Your father is a bit too timid . He even doesn't know how to introduce himself .  
 Person1:        He can just say , I'm Benjamin . I'm new and shy .  
 Person2:Girl , don't make fun of your Daddy . But I can introduce him to my personal trainer . Maybe one day he will be a fitness freak instead of a cough potato .  
 Person1:        Who knows ! 

formal