Hello, I am Thomas Miller.
user
Hello, how may I guide you today?
assistant
I made a reservation earlier, due to some health issue I want to make a few changes in my existing reservation.
user
Sure, please wait for a while.
assistant
Sure.
user
Sorry to say that, there was no reservation found on your name.
assistant
Ok, Thank you for providing information.
user
Thank you for opting us.
assistant