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:     hello . Where are you headed today ?  
 Person2:  I'm off to Barcelona for a week .  
 Person1:      do you have your passport with you ?  
 Person2:  yes , here you go . I don't need a visa to go to Spain , do I ?  
 Person1:      fortunately for you , you don't . Next time , if you have any questions about visas , you should try to find out before you get to the airport .  
 Person2:  that's good advice .  
 Person1:      would you like a window seat or an aisle seat ?  
 Person2:  are there any seats available by the emergency exits ?  
 Person1:      let me see here ... yes , there's one left .  
 Person2:  ok . I'll take that one then .  
 Person1:      alright . How many pieces of luggage are you checking in ?  
 Person2:  I like to travel light so I just have this one .  
 Person1:      if that's your only piece of luggage , it is small enough to carry on with you . Would you like to do that so you don't have to wait in luggage reclaim once you arrive ?  
 Person2:  yes , please . That's a fantastic idea . Which gate do I need to go to ?  
 Person1:      you're here a bit early , so check the departure screens in the waiting area in about a half hour . Here's your boarding pass . Enjoy your flight ! 

1