Hello.
Hello, how can I help you?
Due to change in my plans to visit Dallas, I would like to change my existing reservation. Will you help me with this?
Sure, can I have your name to check the reservation status?
My name is Rebecca Jackson.
There is no reservation found under your name to do modifications in that.
Ok, not an issue. May be something went wrong while booking.
Yes, may be.
Thank you for providing information.
Thank you for choosing us.