Hello.
user
Hello, how can I help you?
assistant
I am Linda Lewis. I would like to book a flight ticket from IAH to DFW.
user
Sure, can you please tell your travelling dates?
assistant
I am planning to start on 02/20 and return back on 02/22.
user
Sorry, there are no flights available with your requested details.
assistant
Ok, no problem. Thank you for the information.
user
Thank you and have a nice day.
assistant