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:       if you can choose , will you marry a foreigner or a Chinese ?  
 Person2:why ? Did tom pop the question ?  
 Person1:        not yet . But I wonder if I can get my parents ’ consent .  
 Person2:let me guess , your parents want you to marry a Chinese man , right ?  
 Person1:        you are right . It is giving me a real headache . I feel like I ’ m between a rock and a hard place .  
 Person2:I used to have the same problem when I was with my ex .  
 Person1:        oh , how did you deal with it ?  
 Person2:I just let it go and continued dating with my Korean boyfriend . But finally we broke up .  
 Person1:        oh , it ’ s a pity . What was the matter ?  
 Person2:simple . We had personality clashes and there were too many cultural differences .  
 Person1:        like what ?  
 Person2:he hoped to live in the Korean way and asked me to give up working and stay at home to take care of the family .  
 Person1:        Oh , I see . In their culture women should put family first .  
 Person2:yes , he said it would be batter for me and for the whole family . But I simply can not quit working .  
 Person1:        so that's why it ’ s hard to have a happy marriage with a foreigner .  
 Person2:not really . There are many successful mixed marriage around us . 

formal