Hello.
user
Hello. How may I assist you?
assistant
I want to fly from LAS to DFW. Can you check the flight availability from that route?
user
Sure, I am glad to help you and may I know your preferable travel dates?
assistant
My planned travel dates are 01/05 and 01/07.
user
Is there any other preferences with connection limit?
assistant
 I want a direct flight with business class only.
user
Can I know your name please?
assistant
Sure, Melissa Adams here.
user
Please allow me a moment.
assistant
Sure.
user
Sorry, there is no flight obtained on your journey dates to book a flight ticket.
assistant
No issues, thank you for the information.
user
You are most welcome and thank you for reaching us.
assistant