Hello, I am Michelle Lewis.
user
Hello, how can I help you today?
assistant
I want to book a flight ticket from New York to Denver, so can you book me a direct flight?
user
Sure, kindly mention your travel dates?
assistant
Sure, my travelling dates are 10/08 and 10/10.
user
May I know your airport codes?
assistant
Yes, my airport codes are NY-LGA and CO-DEN.
user
Ok, please wait a moment.
assistant
  Ok.
user
Sorry to say, no flights found with your requirement.
assistant
That's ok.
user
Thanks for reaching us.
assistant
Thank you for the help.
user