Hi. I am David Campbell.
user
Hello. How can I aid you?
assistant
Can you help me in booking from SFO to IAH, as there is a business meeting?
user
Sure. Can I know your travelling dates?
assistant
My trip dates are 10/19 to 10/21.
user
Give me a minute.
assistant
Sure.
user
Thanks for your time. We found a Hawaiian  airline, flight number:1001 and the price is 1000. Can I reserve it?
assistant
No, don't book it.
user
Ok.
assistant
As I need a flight with fare 500.
user
Ok. Thank you.
assistant
Anyway, thank you for checking.
user