Hello.
user
Hello, how can I help you?
assistant
I am Ronald Roberts. I need to book a flight ticket from DFW to HOU, can you please help me for booking?
user
May I know your desired travel dates please?
assistant
I would like to travel on 11/27 to 11/29.
user
There is no flight on your desired travel dates.
assistant
Ok, no problem. Thanks for your information.
user
Thank you for choosing us.
assistant