Hello.
user
Hello. How may I help you out?
assistant
I am Debra Thompson. Can you please help me in booking a flight ticket from DFW and IAD?
user
Sure, I will help you. May I know your travelling dates please?
assistant
I want to start my journey on 12/20 and return back on 12/22.
user
Ok, please wait a moment.
assistant
Ok, take your time.
user
Sorry, there are no flights found.
assistant
That's fine, no problem.
user
Thank you for choosing us.
assistant
Thank you for searching.
user