Hello.
user
Hello, how may I help you?
assistant
I want to change my existing reservation. Can you help me in this?
user
Sure. May I know your good name?
assistant
I am John Davis.
user
Please, wait.
assistant
Sure.
user
Thank you for waiting, there is no reservation found on your name.
assistant
That's ok, not an issue. Thanks for your help.
user
Thank you for choosing us.
assistant