Hi.
user
Hello, how may I help you?
assistant
I want to change my reservation, can you help me?
user
Sure, may I know your name please?
assistant
I am William Thompson.
user
Ok, please wait for a while.
assistant
Sure.
user
Sorry, there is no active reservation found with your name in our records.
assistant
No problem, thanks for checking.
user
Most welcome.
assistant