Hello.
user
Hello, how can I aid you today?
assistant
My name is Samuel Lee, I want to change my existing reservation due to postpone of my friend engagement.
user
Sure, I am ready to help you. Please hold on.
assistant
Sure.
user
Thanks for waiting. Sorry, we found there is no reservation with your specification.
assistant
No problem, thank you for your quick response.
user
Thank you for choosing us, have a nice day.
assistant