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:     Excuse me , is there a table for 8 right now ?  
 Person2:  Let me see ... I am sorry the tables you want are booked .  
 Person1:      Well , since there are some small square tables , could we put two tables together ?  
 Person2:  No problem , sir . Let me help you . 

1