Hello, my name is Gary Lopez.
user
Hello Gary, how may I help you?
assistant
I want to book a flight ticket with price limit of 500.
user
Sure, may I know your travelling dates?
assistant
My departure day is 02/04, return day is 02/06.
user
Ok, can I know your airport codes please?
assistant
My source and destinations are TX-DFW, TX-AUS.
user
There is a flight available with us but the price is 600. Is it ok for you?
assistant
Don't proceed to booking.
user
Ok, thank you for contacting us.
assistant
Thanks for your service.
user