Hello.
Hello.
I am Christopher Wilson.
How can I assist you?
Actually I made a earlier reservation to go for a trip with my friends, but due to heavy work load in office I want to change my reservation. Can you help me?
Ok, please wait I will revert you in a moment.
Sure.
Sorry to inform you that no reservation was found on your name.
That's Ok, thanks for your response.
 Thank you for availing us.