Hello.
user
Hello, what can do for you?
assistant
My name is Jack Davis. I want to change my existing reservation due to postpone of my client meeting.
user
Sure, we are ready to help you. Please wait for a while.
assistant
Sure.
user
Thanks for waiting. Soory to say you, we found no reservation with your specifications.
assistant
No problem, thank you for your service.
user
Thanks for approaching us.
assistant