Hello.
user
Hello. How can I assist you?
assistant
I am planning to change an existing reservation, due to health issue. Can you please help me out to change my reservation?
user
Sure, can I know your name please?
assistant
My name is Joseph Lee.
user
Sorry, there is no reservation found on your name.
assistant
That's fine. Thank you for your information.
user
Thank you for approaching us.
assistant