Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. If the conversation begins with a question, label it '1' otherwise '0'.
Input:  Person1:     How's your time spent in the United States ? 
 Person2:  Well , pretty good . 
 Person1:      I'm glad to hear that . What impressed you most ? 
 Person2:  Well , the cultural differences impressed me most . 
 Person1:      You mean we Chinese think differently from the Americans ? 
 Person2:  That's right , quite different . One day one of my American friend looked pale , so I asked him whether he was sick or not . But he was reluctant to answer my question . 
 Person1:      That's weird . 
 Person2:  And what's more , when he told me he had caught a cold for several days , I suggested him to go to the hospital as soon as possible . 
 Person1:      You really cared about your friend . 
 Person2:  Sure I am . But he responded by saying'what do you mean ? ' . 
 Person1:      I'm confused . Why did he say that ? 
 Person2:  I felt the same at first . Later he told me that I'd better not give him any suggestions when he was sick . Offering unsolicited help or advice is like showing sympathy to the weak or the poor . But back in China , helping others is always regarded being kind . 
 Person1:      Absolutely . Now I understand why he responded that way . 

1