Hi. I am Joshua Lee.
Hello, how may I guide you?
I am planning for a trip from SFO to HOU, can you help me over that?
Sure, can I know your preferable dates?
Ok, my trip dates are from 10/17 and 10/19.
I am sorry, there are no flights available with your given details.
It's ok, thanks for your information.
Thank you, have a good day.