Hello, I am Mary Martin.
Hello, Mary Martin, how can I aid you today?
Due to an emergency meeting, I want to change my existing reservation. Can you please help me out?
Sure, we are glad to aid you. Please wait for a while, I will check the status and revert you.
OK.
Thank you for waiting, we are sorry to inform you that no reservation has found based on your name.
OK, no issue. Thanks for the information.
It's my pleasure, have a joyful day.