Hello,.
Hello, how may I help you?
I am Nicole Baker. I want to change my existing reservation. Because in my office some of the technical problem arises, so I want to be here. Can you please help me with that?
Sure, we are here to help you. Please stand by I will revert you.
Sure.
Thank you, no reservation found with your name.
Ok, no worry. Thank you for  your service.
Have a nice day.