Hello.
user
Hello, how may I aid you today from my end?
assistant
I am Margaret Taylor. I want to change my existing reservation. Could you help me with that?
user
Sure, I am here to help you out. Please allow me a moment to check the reservation status.
assistant
Ok.
user
Sorry Margaret Taylor, there is no flight reservation on your name in our database.
assistant
That's ok, no problem. Thank you.
user
Thank you for reaching us.
assistant