Hello.
Hello, how may I help you?
I need to change my recent reservation due to some issues, can you help me in doing that?
Sure, I am here to help you with that, can I know your good name to proceed further?
I am Jessica Phillips.
 I am very sorry to inform you that there is no reservation found under your name in our database.
Ok, no issues. Thank you for checking.
Thank you for reaching us.