Hello.
user
Hello, how may I help you?
assistant
I would like to change my existing reservation. Please help me out.
user
Ok, may I know your name please to check the reservation status?
assistant
My name is Deborah Hall.
user
There is no reservation found with your details, Hall.
assistant
Ok, no issue. Thank you for your information.
user
Thank you for contacting us, have a good day.
assistant