Hello.
Hello, how can I help you today?
I need to change my recent reservation due to postpone of my exams, can you help me?
Sure, I am here to help you with that, can I know your good name to proceed further?
I am Dorothy King.
 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 the information.
Thank you for reaching us.