Hello.
user
Hello, how can I help you today?
assistant
I made a reservation earlier in the wrong date unknowingly. Can you please change my existing reservation?
user
Sure, I am here to help you. May I know your name to check further in our database?
assistant
I am Christopher Smith.
user
Please stand by.
assistant
Ok.
user
 Sorry, no reservation found on your given name in our database to change it.
assistant
Ok, Thank you.
user
Thank you for contacting us and have a nice day.
assistant