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:       You are late again , Maria . The teacher is about to come .  
 Person2:I know . I have to prepare the supper for the whole family before I leave .  
 Person1:        Oh , Ben has been cooking for us since I started attending this evening class . The good thing is , he has made great progress in cooking .  
 Person2:The housework is really a big problem for me . My husband is on a business trip to the U . S . now and I have to take care of everything myself .  
 Person1:        How about your one-year-old baby ?  
 Person2:I've asked my parents to live with us for a while , so they can look after her for me while I am at work or in the class .  
 Person1:        How sweet of them ! I have to work in the day time , study at night , and do housework during my spare time . I really hope I have eight arms and legs , like an octopus .  
 Person2:Me too . Sometimes I do want to give it up . I can't deal with so many things at a time .  
 Person1:        When is your Adult College Entrance Exam ?  
 Person2:It's close coming up at the end of this month . That will be no more than 15 days from now on .  
 Person1:        Oh , my Adult College Entrance Exam is also around then . I don't know if I can pass it .  
 Person2:Why don't you take the CPA exam ? You are already a good accountant , having so many years of experience .  
 Person1:        I just want to study in a college , majoring in economics . I've had this dream for a long time . 

formal