Hello.
user
Hello. How can I aid you?
assistant
My scheduled examination dates has been postponed, could you please help me with changing my recent reservation?
user
Sure, We are here to  help you. May I know your name?
assistant
My reservation was done under the name Barbara Evans.
user
Give me a minute.
assistant
Sure, take your time.
user
 Thank you for waiting, but I am sorry to say that, there is no active reservation found with your name in our database to change it.
assistant
Ok, not an issue. Anyways, thank you for the information.
user
Thank you for reaching us.
assistant