Hello.
Hello, may I know your good name?
I'm Gary Hill.
OK Gary, how can I help you today?
I would like to change my existing reservation.
Sure, I can help you. Please wait a moment to check it.
OK.
Sorry Gary, as per the information you provided there is no reservation found in my data.
OK.Thank you for your information.
Thank you for contacting us , have a great day.