If it was not very warm out (70 degrees F), some cycling is normal. If it goes a few seconds on, then off, on,off, etc, then you may have a low charge. The a/c pipe should get cold near the driver's side of the radiator, if it does not you have low charge. The radiator fan should also be running steady whenever the a/c is on, even when cycling. What engine is in your Festiva?