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 much is it ?  
 Person2:  6 500 yuan . You will get it on the price tag .  
 Person1:      It s a little overpriced . Is there any discount on this laptop ?  
 Person2:  Its already very cheap . Let's make it 6 000 yuan .  
 Person1:      I ’ d buy this if it were cheaper . How about 5 000 yuan ?  
 Person2:  Hum ... I say 5 500 yuan . That's as cheap as it can get .  
 Person1:      Is it the final price ?  
 Person2:  I'm sorry , this is our rock bottom price .  
 Person1:      Alright , I ’ ll buy this one . 

1