Hello.
user
Hello, how may I help you today?
assistant
I am Carolyn Nelson. I want to book a flight ticket from DCA to IAD. Could you help me in booking?
user
Sure, could you please share your departure and arrival dates?
assistant
My travelling dates are from 08/09 to 08/11.
user
Do you prefer a stopover in between your journey?
assistant
Yes, I need a single connecting flight.
user
Ok, please wait for a moment, let me search a flight for you.
assistant
Ok.
user
Sorry to say this, there are no flights available from your source.
assistant
That's ok, no problem. Thank you for helping me.
user
Thank you for choosing our airlines, hope to serve you again.
assistant