Hi.
user
Hello, how can I provide assistance to you?
assistant
I made a reservation earlier in the wrong date unknowingly so, I want to change my existing reservation.
user
Ok, may I know your name?
assistant
Sure, Sandra Campbell is my name.
user
 Please wait for a while, I will check the reservation status and get back to you.
assistant
Sure.
user
Sorry, there is no reservation found on your name.
assistant
Ok, not at all a problem. Thanks for the information.
user
Thank you for availing us.
assistant