Hello. I am Sharon Young.
user
Hello, how can I amend you?
assistant
 I made a reservation earlier in the wrong date unknowingly so, I want to change my existing reservation.
user
Sure, I will help you. Please stand by.
assistant
Sure.
user
Thanks for waiting. There is no reservation done earlier with your name to change.
assistant
Not an issue. Thanks for your support.
user
Thank you for choosing us.
assistant