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