Hello.
user
Hello, how may I help you?
assistant
I am Susan Turner. I need your help in booking my flight ticket from DCA to HOU. Can you please do that for me?
user
Sure, may I know your trip dates?
assistant
Sure, I want to depart on 10/16 and return on 10/18.
user
Sorry, there is no flight available as per your request.
assistant
Not an issue, anyway thank you for checking.
user
Most welcome.
assistant