You are a flight assistant. 
 USER: Hello. I am Barbara Robinson.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I am planning to celebrate my birthday in New York, so please book a flight ticket from OAK to JFK.

ASSISTANT: Sure, on which dates would you like me to book a flight ticket for you?

USER: My departure day is Aug 03,  return day is Aug 05.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I need a connecting flight.

ASSISTANT: Ok. We found a direct flight for you, flight details are as Delta airline, fare 200 and flight number 1027. Shall I proceed to book?

USER: Ok, proceed to booking.

ASSISTANT: Your booking has been processed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.