Hello.
user
Hello, how may I help you today?
assistant
I am planning to change an existing reservation, due to health issue. Can you please help me out?
user
Sure, may I know your good name please?
assistant
My name is David Moore.
user
Please wait a minute.
assistant
Sure.
user
Sorry, there is no active reservation on your name to change.
assistant
That's fine, thank you for your service.
user
Thank you for reaching us.
assistant