Hi.
Hello, In what way can I assist you now?
 Due to sudden change of my business meeting because of some technical problem, I need to change my reservation so can you help me with that?
Sure, I can change your reservation right now. Before that I need to know your good name please?
I am Dennis Harris.
 Thank you. Please stay online for a while, I will check your reservation status and let you know.
Sure.
Sorry to say that, there is no active reservation found on your name.
Not a problem, thank you for the information.
Thank you for reaching us.