Hello.
Hello. How can I help you?
I am Jack Barker.
Ok.
I am planning to travel from DFW to JFK. Can you help me out?
Sure, may I know the travelling dates?
My travelling dates are 12/18 to 12/20.
Ok, please wait for a moment.
Make sure my connection is 1 and price is 200. Ok.
Sorry  Jack, there are no flights found on your requirements. Thank you for approaching us.
That's fine. Thank you for your help.
You are welcome.