Hello, I am Robert Campbell.
user
Hello, how may I help you?
assistant
I would like to go to a event in Houston, so could you aid me in booking a flight ticket to Houston?
user
Sure, I will help you with that. Can I have your travel dates please?
assistant
Sure, I would like to go on Aug 22nd and return back on Aug 24th.
user
Please wait for a moment.
assistant
Sure, take your time.
user
Can I have your preferable airport codes?
assistant
Sure, my source and destination airport codes are PHL and HOU.
user
Sorry to say, no flight is available for you.
assistant
That's ok, thank you for checking.
user
Thank you for reaching us, have a nice day.
assistant