Hello.
user
Hello, how may I assist you?
assistant
My Hockey competition was postponed, so I need to change my existing reservation. Could you help me with that?
user
Sure, may I know your name please?
assistant
My name is Dennis Brown.
user
Yes,  do you have any other dates?
assistant
My trip dates are 04/13 and 04/15.
user
Sorry, Brown no reservation found on your request.
assistant
It's ok, thank you for the information.
user
Thank you for contacting us.
assistant