Hello.
user
Hello. How may I help you?
assistant
David Perez here, I am planning to book a flight ticket to MCO from LAX. Can you please do it for me?
user
Ok, please provide your trip dates too.
assistant
Ok, my trip dates are 02/06 and 02/08.
user
  Sorry, there is no flight for you on your route.
assistant
It's ok, thank you for the information.
user
Thanks for choosing us.
assistant