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:       I would love to be famous and have thousands of adoring fans . 
 Person2:Really ? I ’ m not sure that I would like all the attention . There have been numerous cases of paparazzi interfering with star ’ s private live in recent years . 
 Person1:        I love being photographed ! If I were famous , I ’ d do interviews for all the top magazines , like cosmo and elle . 
 Person2:I wouldn ’ t mind having my photo taken a few times or being interviewed once or twice , but it would get tedious after a while . Imagine the things the gossip columnists would write about you . 
 Person1:        No-one really believes gossip columnists . 
 Person2:I think you ’ ll find that many people believe what they read in gossip columns . You ’ d also have to be very careful about every word you said . If you appeared on a chat show and said something silly , it 
 Person1:        I think you ’ re right about that . I ’ d need a good manager to be my spokesperson . I could do a lot of charity work , which would help a lot of people . 
 Person2:That ’ s a great idea . Which charities would you support ? 
 Person1:        I love children , as you know , so probably a children ’ s charity . 
 Person2:You ’ d have to remember that anything you said or did might reflect on the charity , so you ’ d really need to be very careful . Anyway , I ’ d be the first to buy your posters and I ’ d attend your first book - 
 Person1:        Thanks , but actually I was hoping I could ask you to write my biography . 

informal