Hello.
user
Hello, how may I help you today?
assistant
I am Joseph Lewis. I want to change my existing reservation due to postpone of my meeting. Can you help me with that?
user
Sure, please wait for a while.
assistant
Thank you. Sure.
user
Sorry, there is no reservation found on your name.
assistant
No problem, thank you for the information.
user
Thank you for reaching us.
assistant