Hello. My name is Steven Walker.
user
Hello, how can I serve you today?
assistant
I am planning visit a function is postponed. So, I want to change my existing reservation. Can you help me out with that?
user
Sure, please wait for a moment.
assistant
Sure.
user
Thanks for waiting, sorry to say that, no reservation was found with your name.
assistant
Ok, No problem.
user
Thanks for choosing us.
assistant
Thank you.
user