Hello,. I am Richard Walker.
user
Hello, How can I help you today?
assistant
I made a earlier reservation to get together  party with friends, due to some problems it got postponed. Can you please change my reservation?
user
Ok, please wait a minute.
assistant
Sure.
user
Thanks for waiting, we did not find reservation on your name in our database.
assistant
Ok, no issue. Thank you.
user
Thank you for choosing us.
assistant