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:     So you're traveling around the world , aren't you .  
 Person2:  That's right  
 Person1:      When did you arrive here ?  
 Person2:  Last night  
 Person1:      Did you have a good journey ?  
 Person2:  Yes , I enjoyed it very much .  
 Person1:      Where have you been on this trip ?  
 Person2:  Let me see . Ah , yes , I've been to England , France , Germany , Italy and now I've been in Spain  
 Person1:      Really ? How long will your holiday last ?  
 Person2:  Two weeks  
 Person1:      All these countries in two weeks ?  
 Person2:  That's right 

1