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:     Fair-Priced Fares , how may I help you ?  
 Person2:  How much is a round-trip ticket to London ?  
 Person1:      When did you plan to go , sir ?  
 Person2:  In the second week of September .  
 Person1:      The second week of September is still in the high-season , so the cheapest tickets are $ 650 . The high season lasts until the 15th , so fares after that date are cheaper .  
 Person2:  In that case , I'll go after the 15th . How much are the off-season fares ?  
 Person1:      Our cheapest ticket is $ 550 on American Airlines .  
 Person2:  Okay , I'll take it . ( to be continued ) 

1