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