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