Hello.
Hello, how can I assist you today?
I am Richard Garcia. Suddenly I got a call from my manager to attend a meeting, so I need to change existing reservation. Can you please help me?
Sure, I am ravish to help you.
Ok, thank you.
We hardly tried to find your reservation but, no reservation has been found with your name.
That's ok, thank you for your information.
Thank you for your positive response.