Hi.
user
Hello.
assistant
I am Ronald Phillips.
user
How may I guide you today?
assistant
Can you find a flight for me from DFW to LAS?
user
Sure, I will help you with that. Can you please share your preferable journey dates?
assistant
Ok, my trip dates are from 02/19 and 02/21.
user
I am sorry to say that there is no flight found under your  detail.
assistant
That's ok. Anyways, thank you for your help.
user
Thank you for reaching us.
assistant