Hello.
Hello, how can I assist you today?
As there is change in my plans to visit Dallas, could you please help me by changing the existing reservation?
Sure, may I know your good name please?
My name is Paul Rodriguez.
Please wait for a while. Sorry Paul, no reservation found under your name in our database.
Ok, not an issue. May be something went wrong while booking the ticket. Thank you for providing information.
It's my pleasure, have a good day.