Hello.
user
Hello, how may I guide you?
assistant
I am Anthony Phillips. I would like to book a flight ticket from SFO to IAD.
user
Sure, can I know your preferable dates?
assistant
I am starting on 01/29 and return back on 01/31.
user
I am sorry, there are no flights.
assistant
Ok, no problem. Thank you.
user
Thank you, have a good day.
assistant