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:       Are you an outgoing person , or more reserved ?  
 Person2:I wouldn't call myself outgoing . I used to be very shy when I was little , and it seems that I get a little more relaxed a-round people year after year , and have more fun in groups .  
 Person1:        Are you more of a follower or a leader ?  
 Person2:I don't try to get in front of people and lead them , particularly . I'd rather cooperate with everybody else , and get the job done by working together .  
 Person1:        What basic principles do you apply to your life ?  
 Person2:Not to put off till tomorrow what you can do today . I've found out that time and money get away very easily — you think you have them , and they're gone ! Putting things off just makes it worse later , so even if it's hard at the time , I try to get things done that day and not let them go . 

formal