Hello.
user
Hello, how may I help you?
assistant
I am Frank Smith. I want to chnge my reservation, due to some health issue. Can you please help me out?
user
Sure, please wait for a while.
assistant
Ok, take your time.
user
Sorry Smith, there is no active reservation found with your name in our records.
assistant
That's ok, thank you for checking.
user
My pleasure.
assistant