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:     How can I help you ?  
 Person2:  Yes , I am James Mason from Anderson and Associates Limited . I would like to see Mr . Smith .  
 Person1:      Do you have an appointment ?  
 Person2:  Yes , he knows I'm coming . Our meeting is set for 2 o'clock .  
 Person1:      I wonder if Mr . Smith forgot your meeting . I am afraid he left this office this morning and is not expected back until 4 p . m . Let me find out if he made arrangements for someone else to meet with you in his place . Will you please have a seat ?  
 Person2:  Sure .  
 Person1:      Yes , Mr . Mason . I just checked with our office manager , Ms . Terry . She said Mr . Smith briefed her on your project . She is just finishing up a meeting now . She should be with you shortly . Would you like me to show you around while you are waiting ?  
 Person2:  That would be very nice . Thank you .  
 Person1:      Right this way , Mr . Mason . We can start with our front office . When Ms . Terry is ready , you may take the elevator at the front to the 6th floor.There is a conference room already prepared . 

1