Hi. Myself James Clark.
user
Hello, how can I assist you Clark?
assistant
I want to travel from DFW to LAS, can you please help me in booking of the flight ticket?
user
Yes, I will help you. Please let me know your journey dates?
assistant
My travelling dates are on 09/10 and 09/12.
user
Sorry to inform you, there are no flights available in the dates you provided.
assistant
It's ok. Thank you for the information.
user
You are welcome.
assistant