Hello.
user
Hello, how may I help you?
assistant
I want to change my existing reservation, due to some health issue. Can you please help me out?
user
Sure, I am here to help you.
assistant
Thank you.
user
Can I know your name for checking your previous reservation?
assistant
My name is Angela Allen.
user
There is no reservation found under your name to change.
assistant
That's ok, thank you for checking.
user
Thank you for choosing us.
assistant