Hello.
user
Hello, how may I aid you?
assistant
Please help me to book a flight ticket from DCA to SFO.
user
Sure, may I know your trip dates?
assistant
Dec, 31 and Jan, 2 are my trip dates.
user
Do you need any way station in your journey?
assistant
Yes, I need a stopover.
user
Do you have any other requirements?
assistant
No, thanks.
user
May I know your name please?
assistant
Samuel Parker here.
user
Sorry to inform you that, there are no flights available with your requirements.
assistant
That's ok, thank you for the information.
user
Thank you for choosing us.
assistant