Hello, I am Brandon Wilson.
user
Hello, how can I best serve you today?
assistant
I need to change my existing reservation due to my event has been postponed.
user
Sure, I will help you to change your reservation. Please wait for a moment.
assistant
Ok.
user
Thanks for waiting, Sorry there is no any reservation found on your name.
assistant
Thank you for your great information.
user
Thank you, have a great day.
assistant