Hello.
user
Hello, how may I help you?
assistant
Please book a flight ticket from SFO to DCA?
user
Sure, let me know your travel dates please?
assistant
My journey dates are Nov 29 and Dec 01.
user
May I know your connection limit?
assistant
I need a direct flight.
user
Do you need any other preference?
assistant
No.
user
Can I know your name please?
assistant
I am Nancy Wilson.
user
Sorry to inform you that there are no flight services available on your given details.
assistant
No problem, thank you for your information.
user
Thank you for contacting us.
assistant