You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I have an urgent meeting in DC - IAD so I want to book a flight ticket for me. Can you help me out of it?

ASSISTANT: Sure, I can help you with that. Can you please help me with your travelling dates?

USER: My travelling dates are 07/26 and 07/28.

ASSISTANT: Could you please provide the source airport code?

USER: I am Dennis Harris and my location is CA - OAK.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Ok.

ASSISTANT: May I know your name to proceed further? Dennis, there is a flight available at your request with price 200. Would you like me to proceed the booking?

USER: Yes, proceed.

ASSISTANT: Sure. Your booking is confirmed with JetBlue airline and the flight number is 1014.

USER: Thank you for the booking.

ASSISTANT: You are welcome. Thank you for contacting us.