Hello.
Hello, how may I assist you today?
I want to change my existing reservation due to postpone of my exams, so can you help me with this?
Sure, we are here to help you.
Thank you.
May I know your good name please?
My name is Brenda Scott.
Please wait a minute.
Sure.
Sorry, there is no active reservation found on your name to change.
Not  a problem, thank you for the information.
Thank you for reaching us.