Hello.
user
Hello, how may I assist you?
assistant
I would like to change my existing reservation, can you help me in that?
user
Sure, may I know your good name?
assistant
Sure, myself Jonathan Phillips.
user
I regret to inform you that there is no reservation found on your given name.
assistant
That's ok, no problem. Thank you for the information.
user
Thank you for opting us.
assistant