Hi, I am Karen Edwards.
user
Hello. By what way shall I aid you at this moment?
assistant
I want to book a flight ticket to Dallas & Fort Worth with price under 500, can you please help me with it?
user
Sure. To have a flight ticket, may I know your journey dates?
assistant
Journey dates are 02/26 and 02/28.
user
Let me know your airport codes.
assistant
Airport codes are IAH-DFW.
user
Unfortunately, there are no flights with your requirements.
assistant
Ok, no issues.
user
Thank you for picking us.
assistant
Thanks for the help.
user