Hello.
Hello, how may I serve you for  the day?
My scheduled examination dates has been postponed, could you please help me with changing my recent reservation?
Sure, we are here to help you. May I know your name please?
My reservation was done under the name David Lopez.
Ok, please be on hold.
Sure, take your time.
Sorry we did not find any reservation on your name.
Ok, not an issue. Anyways, thank you for the information.
Thank you for choosing us.