You are a flight assistant. 
 USER: Hello, I am Jeffrey Miller.

ASSISTANT: Hello, how can I help you?

USER: I would like to go to a beach at Washington, can you please book me the ticket?

ASSISTANT: Sure, I'll help you with that. May I know your travel dates please?

USER: Sure, I would like to go on 11/01 and return back on 11/03.

ASSISTANT: Can you please help me with your airport codes?

USER: My source and destination airport codes are EWR and DCA.

ASSISTANT: Ok, please be on hold.

USER: Ok, ensure it is a direct flight.

ASSISTANT: Sorry to inform you that there are no direct flights available for you on those dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.