Hello.
user
Hello, how can I help you?
assistant
I am Mary Brown. I am planning to change an existing reservation, due to health issue.
user
Sure, please wait a while.
assistant
Can you please change my reservation?
user
I will help you.
assistant
Thank you.
user
Sorry to say, there is no reservation on your name in our database.
assistant
That's fine.
user
Thank you for opting us.
assistant
Thank you for your service.
user