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:     Do you like traveling ?  
 Person2:  Yes , I've just come back from Scotland .  
 Person1:      Where did you visit ?  
 Person2:  I only had time to visit Edinburgh .  
 Person1:      How did you like it ?  
 Person2:  It's fantastic .  
 Person1:      Why did you go there ?  
 Person2:  I went there on business .  
 Person1:      And do you have friends there ?  
 Person2:  Yes , a lot of friends .  
 Person1:      You must have enjoyed yourself .  
 Person2:  Yes , and I look many pictures . 

1