Hello. I'm Edward Evans.
user
Hello, how may I help you for today?
assistant
I am planning for a round trip from DCA to DCA, can you please help me with booking a flight ticket?
user
Sure, could you please provide your travelling dates to search for the flight?
assistant
Sure, I would like to take off on 09/02 and return back on 09/04.
user
Please hold on for a moment.
assistant
Ok, but please make sure that the price limit does not exceed 500.
user
I got a flight 1010 from AA airlines with fare 100, shall I proceed?
assistant
Yes, please proceed with the booking.
user
Your booking is done.
assistant
Thank you for your help.
user