Hello.
Hello, how may I help you.
I want to change my existing reservation, can you help me out?
Sure, we are here to help you.
Thank you.
Can I know your name please to proceed further?
Sure, I am Betty Smith.
Please wait for a while.
Sure.
Sorry to inform you that there is no active reservation on your given name.
Ok, no problem. Thank you.
Thanks for reaching us, have a nice day.