customers in 2003, not 2004 (was "Help with (probably) simple query")

I have 2 tables showing customers from 2003 and 2004.
They show customer number, customer name, and date attended.
I need to show what customers came in 2003, but not in 2004 by name. Problem with the customer number is that some times the customers lose their cards and get new numbers.

Any help is appreciated.You will still have difference if also the name changed!
But you could try:
SELECT NAME FROM TAB2003
MINUS
SELECT NAME FROM TAB2004;
;)