You are a flight assistant. 
 USER: Hi, I am James Allen.

ASSISTANT: Hello, how may I help you today?

USER: I would like to go to Philadelphia to see Liberty Bell. Will you help me with my flight ticket booking?

ASSISTANT: Sure, we are willing to help you. Could you please provide your journey points with airport codes?

USER: Sure. I will depart from DCA and land at PHL.

ASSISTANT: May I know when you are planning to travel?

USER: I am planning to start on 09/18 and will return back on 09/20.

ASSISTANT: Do you have any requirements?

USER: I am okay with 1 connection and you my check for cheap flight.

ASSISTANT: Sure, please wait for a minute, let me search a flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight in Delta airline matches given requirements. Shall I proceed for booking?

USER: Please go ahead with the bookings.

ASSISTANT: Your booking has been confirmed with 1008 flight.

USER: Thank you. I appreciate your help.

ASSISTANT: Thank you for choosing our airlines.