Hello.
user
Hello, how can we best assist you?
assistant
I need a flight ticket from Houston TX-IAH to visit  San Francisco zoo with my family.
user
Sure, may I know your journey dates?
assistant
I would like to travel on 05/25 and return on 05/27.
user
What is your destination airport code?
assistant
CA-SFO.
user
To proceed further, may I know your good name.
assistant
Barbara Garcia.
user
Thanks for providing our name. Sorry there is no flight found on your journey details.
assistant
Ok, thank you.
user
Thanks for connecting us, have a nice day.
assistant