Hello.
Hello. How may I help you?
I'm Sandra Brown. My scheduled examination dates has been postponed. So, I would like to change my reservation which is under my name.
Sure,  I will assist you with that. Please give me a minute while I am checking your previous reservation.
Sure, take your time.
Sorry Brown, I didn't found any ticket booked under your name in our chart list.
Ok, no issues. Thank you for checking.
Thank you for your positive response.
You are welcome.
Have a nice day.