Hi.
user
Hello. How may I help you?
assistant
I want to change my reservation due to health problem, can you help me?
user
Sure, can I know your name for checking your previous reservation?
assistant
Myself Mary Campbell.
user
Ok, wait for a second.
assistant
Sure.
user
Sorry Mary, there is no reservation found on your name.
assistant
No problem, thanks for checking.
user
Thank you for contacting us.
assistant