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:       have you adapted to the lifestyle in China ?  
 Person2:yeah , almost . But there is one thing .  
 Person1:        what ?  
 Person2:I still wonder what privacy meant for Chinese people . I don't mean to say that there's no privacy in China , but ...  
 Person1:        what is it ?  
 Person2:some of my Chinese colleagues just share their personal stories in front of others .  
 Person1:        that makes you feel uncomfortable ?  
 Person2:yeah . we never do that in a public office .  
 Person1:        perhaps that's because we hold different ideas about privacy .  
 Person2:i have felt that . One day when i was in a queue , reading a newspaper story , the man behind me peered through my shoulder and stared at the newspaper I was holding .  
 Person1:        well , that's not rare . I've seen people reading at others ' newspaper while taking a metro or a bus .  
 Person2:just stare at the newspaper holding in the hands of the one next to him ?  
 Person1:        yeah .  
 Person2:Oh , I'm shocked . 

informal