Hello.
Hello, how may I help you today?
Owning to an emergency I want to change my existing reservation. Can you please help me with this?
Sure, I can change your reservation right now. Before that I need to know your good name please?
I am Gregory Hill.
 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.
Ok, not an issue. Thank you for checking.
Thank you for reaching us.