Hi.
user
Hello, how may I aid you today?
assistant
I am Patrick Parker. I want to change my reservation due to health problem, can you help me?
user
Sure, I am here to help you. Please wait for a mean while.
assistant
Sure.
user
Sorry, there is no reservation found as per your name to change it.
assistant
No problem, thanks for checking.
user
You are welcome.
assistant