You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I have to go Washington for my film shooting purpose, can you please book a flight ticket from DCA to DCA?

ASSISTANT: Sure, may I know your journey dates please?

USER: I want to fly from Washington on 10/14 and please book my return ticket also on 10/16.

ASSISTANT: Can I have your good name please?

USER: Sure, my name is Ryan Carter.

ASSISTANT: There is a flight from Southwest airlines with travel charge of 500, shall I proceed for booking?

USER: I am ok with this flight, please proceed.

ASSISTANT: Your ticket has been booked with flight-1016, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.