Hello.
user
Hello. How can I help you now?
assistant
I have made mistake while booking the flight. Can you help me in changing my existing reservation?
user
Sure, may I know your name please?
assistant
My name is Elizabeth Davis.
user
Sorry, there is no reservation found on your name.
assistant
That's fine, thank you for the information.
user
Thank you for approaching us, have a nice day.
assistant