Hi.
user
Hello, how may I guide you?
assistant
I am Brandon Smith. I made a reservation earlier to attend a get together party with my college friends. Due to some issues in college it  got postponed. Can you help in Change my reservation?
user
Sure, please hold on for a moment while I check for any existing reservations with your name.
assistant
Sure.
user
I am sorry Brandon, there are no existing reservations with your name.
assistant
That's ok, thank you for your help.
user
Thank you, have a good day.
assistant