Hello.
Hello, how may I help you for this moment?
Actually I want to change my existing reservation, due to an emergency. Can you help me?
Sure, I am here to help you.
Thank you.
May I know your name please?
Sure, I am Carolyn Green.
Ok, please wait for a mean while.
Sure.
Sorry Green, there is no reservation found as per your name to change your reservation.
Ok, no problem. Thank you for your information.
Anyways, thank you for your service.