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:     Is there anything I can do for you ?  
 Person2:  I want to have a trip to Sydney .  
 Person1:      Sure . How long is your vacation ?  
 Person2:  3 weeks  
 Person1:      Well , how do you like this one ? You will stay there for 17 days .  
 Person2:  It's good . By the way , what kind of clothes do I have to bring with me ?  
 Person1:      It's summer in Sydney so you have to bring your summer wear . 

1