Hello.
user
Hello. How can I aid you?
assistant
Can you please help me in changing my existing reservation?
user
Sure, We are here to help you. May I know your name?
assistant
Thank you very much for quick access, myself Janet Roberts.
user
Give me a minute.
assistant
Sure.
user
  Thank you for waiting, but I am sorry to say that, there is no active reservation found with your name in our database to change it.
assistant
Not a big deal, anyhow thank you very much for checking the reservation status.
user
Thank you for reaching us.
assistant