Hello.
Hello, how may I assist you?
Due to change in my plans to visit Dallas, I would like to change my existing reservation. Can you help me with this?
Sure, I will help you about it. But can you please provide the name on which reservation is done.
My name is Carol Hernandez.
I have checked in our database there is no reservation under your name Hernandez.
Ok, not an issue. May be something went wrong while booking.
Yes, it might be the reason.
Thank you for providing information.
Thank you for choosing our service.