I used the new interface on Thursday to try and book a flight. When I tried to use funds from previous itineraries, I received an error message that the confirmation numbers could not be found or the funds had expired. Of course, when I checked them using the View Ticketless Travel Funds, they were there as expected. I reverted to phoning an agent and going through a 20-minute ordeal to book a web-only fare that I anticipated doing on-line in two minutes. And now the itinerary does not show up when I log into my account because it was not made on-line.

Another frustruation is that the calendar pops up below the date fields and is often below the viewable portion of the page on the browser. When you go to scroll down so that you can see the calendar, it disappears and you have to click it again and wait for it to reappear. I don't seem to have this problem on other booking engines.

In my opinion, the new interface is not ready for primetime and Southwest should address the problems before continuing to roll it out.