Hello.
user
Hello, how may I serve you today?
assistant
I am planning to change an existing reservation, due to some urgent meeting. Can you please help me out?
user
Sure, may I know your name?
assistant
My name is Stephen Parker.
user
Sorry, there is no reservation found on your name to change.
assistant
That's fine, thank you for your help.
user
Thank you for reaching us.
assistant