Hi.
user
Hello. How may I assist you today?
assistant
I am Timothy Phillips. I am planning to travel from IAH to SFO, help me in booking a flight?
user
Sure, I am here to help you but I need your travelling dates.
assistant
My travelling dates are 09/27 to 09/29.
user
Sorry for this inconvenience, I could not find any flight with your travelling dates.
assistant
That's ok, thank you for your information.
user
My pleasure.
assistant