Hello.
Hello, how may I help you?
As my meeting got postponed with my client, can you please help me in changing my existing reservation?
Sure, I am here to help you with that, can I know your good name to proceed further?
I am Samantha Lewis.
 I am very sorry to inform you that there is no reservation found under your name in our database.
Ok, no issues. Thank you for checking.
Thank you for reaching us.