Hello.
user
Hello, how may I assist you today?
assistant
Can you please me in changing my reservation as my meeting got postponed?
user
Sure, may I know your name for the changing process?
assistant
 I am Janet Garcia.
user
Sorry as per your concern I can not amend your reservation as your reservation is not found as per our records.
assistant
Ok, no problem. Thank you.
user
Welcome, thank you for reaching us.
assistant