Hello, I am Scott Allen.
user
Hello, we are glad to serve you.
assistant
My business meeting  has changed to New York, can you please help me in changing my existing reservation?
user
Sure, let me check and revert to you.
assistant
OK.
user
Sorry, no reservation found with the provided name.
assistant
OK, thank you for your information.
user
Pleasure to assist you, have a great day ahead.
assistant