Hello.
user
Hello, how may I help you?
assistant
I am planning to change an existing reservation, due to health issue. Can you please help me out?
user
Sure, please share your good name?
assistant
My name is Katherine Collins.
user
Please wait for a while.
assistant
Sure.
user
Sorry, no reservation found on your given name.
assistant
That's fine, thank you for your service.
user
Thank you for choosing us.
assistant