United Airlines Review

My husband and I planned a trip to San Juan, Puerto Rico for Feburary 2009.  We purchased our plane tickets in May of 2008.  Our original plan was to fly Delta to Las Vegas than United to Dallas FortWorth and then on to Puerto Rico.  In August our 2hr lay over in Vegas turned into a 7 hr lay over so we found another United flight that flew out of Vegas that same night and flew to Miami and then to puerto Rico.  we called United had our flights changed and was told that they would not be able to change our delta flight, we told them that was fine we wanted our delta flight.  So they just needed to change our flight going out of Vegas not into Vegas.  We though  everthing was taken care of till the night we got to the airport(6 months later) and Delta said our tickets had been exchanged, but they couldnt find what the had been exchanged for.  We had ticket with United flying out of Vegas with my husband final destination being Miami and Me flying on into Puerto Rico.  Come to find out the person that redid our flights erased our whole itinerary and insteed of contacting us and making everything right they waited for us to get stuck at the airport.  Lucky for us we got to the airport 3 hours early so we could have a nice relaxing dinner andnot  worry about rushing around.  We almost missed our delta flight, but thanks to our wonderfull delta agent and his manager we had a great vacation.