Hello.
user
Hello, how may I assist you today?
assistant
Would it be possible to change my reservation, which I have done with my name?
user
Sure, may I know your name for the changing process?
assistant
Yes, my name is Amy Nelson.
user
Sorry, as per your concern I can not amend your reservation, as your reservation is not found as per our records.
assistant
  That's ok, thank you for the response.
user
Welcome, thank you for reaching us.
assistant