We had flights for 6 planned through Southwest Vacations and Southwest Air canceled our flights on May 6 and didn't advise us. Our travel agent went in to verify everything and NOTHING was there for our flights. SW canceled all 6 flights and didn't give us any notice. We were left with a wonderful Punta Cana resort with no way to get there. Southwest Air gave no indication as to why, that they just dropped the flight from the schedule. When we asked them for alternate flights they did not want to assist us. The CSR from SW couldn't give us a reason and when asked if they would possibly add a flight, she advised that she "didn't have a crystal ball" to be able to verify that. Wrong thing to say to someone who manages a business. Very poor customer service. We will never use Southwest again for travel and we have used them a LOT over the years. American Airlines bailed us out and offered flights. Be cautious that SW will cancel you with no reason or warning.