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:     Hi . Bob ! We've been working hard at our lessons for a fortnight . So why don't we take it easy this weekend ?  
 Person2:  Okay ! What do you suggest ?  
 Person1:      How about seeing a play ? I hear Hamlet is on at the National Theater .  
 Person2:  Is that so ? Why not ?  
 Person1:      ( looking at a newspaper ) Oh , dear me ! There's no performance at the National theater this weekend . So we have to go to cinema instead .  
 Person2:  What's on ?  
 Person1:      Let me see .. um . Gone With the Wind . It is on at six cinemas on Saturday night .  
 Person2:  That sounds interesting . Which is the nearest ?  
 Person1:      Ah . The Royal , I think .  
 Person2:  What time does it start ?  
 Person1:      Why don't we go to the 7:30 show ? It is convenient to us , I think .  
 Person2:  But we won't have enough time for dinner .  
 Person1:      Do you want to go to the earlier or the later show ?  
 Person2:  Ah ... I fancy going to the later show .  
 Person1:      Then , there's a 9:30 show .  
 Person2:  That's Okay , I think .  
 Person1:      All right . 

0