Hello, I am David Lopez.
Hello, how can I assist you?
I want a flight ticket with price under 500. Can you help me with booking  a flight ticket?
Sure, I am happy to help you. Can you please provide your journey dates?
My journey date are 03/04 to 03/06.
Ok, please provide your journey points.
Journey points are PHL-IAD.
Ok, please wait for a while.
sure.
Thank you for your patience, There is a Southwest plane found with flight number 1009. The price is 100.
Yes, you can proceed with booking.
Sure, your ticket has been reserved.
Thanks for the help.
Thank you for choosing us.