Hello.
Hello. How may I aid you at this minute?
I want to change an existing reservation, so please help me in changing the reservation.
Ok, I am glad to help you with that. Can I know your good name?
Myself Katherine Martinez.
Please wait for a minute.
Ok.
Sorry to say that, there is no reservation found on your name in our database.
 Not an issue. Thank you.
Thank you for approaching us.