Hello.
Hello, how may I be at your service today?
As my meeting got postponed with my client, can you please help me in cancelling my existing reservation?
Sure, I can cancel  your reservation right now. Before that I need to know your good name please?
I am Catherine Green.
Sorry, there is no reservation matching with your name in our portal.
Ok, no issues. Thank you for checking.
Thank you for choosing us.