Step one: search your desired dates (I searched "Walt Disney World" but you can also do Orlando. Filter down in the "area" box to "Walt Disney World - Bonnet Creek"
Step two: Filter "Star Rating" to "Four Stars"
Step three: check in your browser window for the number of trip advisor reviews for the Swan and Dolphin (or just one or the other if you are adamant about which one you want to stay at, I found availability at one or the other for all of the dates that I searched but never both). In Chrome on my computer the Dolphin shows 5051 reviews, the Swan shows 4908 reviews. I understand from friends that this could vary by browser so just check on yours and take note of the exact number of reviews
Step four: using your "find" function in your browser window (mine works to press the control button and letter key "f") then type in the number you took note of in step three. My browser shows 5051 revews for the Dolphin, so I searched 5051. You can see this yields two results in the find function - one is for the Hot Rate blind deal for the Dolphin, the other is the outright Dolphin result (the one listing it at $217 per night). Click on the Hot Rate blind deal matching the search result for the number of trip advisor listings
Step five: confirm the result that you clicked on has the $32 resort fee and matches the amenities for the Swan or Dolphin, based on which number you used to search. The dead giveaway for the Dolphin is that they have a "bed choice" option for two full beds, which is unusual in Orlando. It should NOT list free parking. The other four star hotel that showed up in my search listings is probably the Hilton Bonnet Creek based on the number of trip advisor reviews matching - these show queen beds so you don't want to book that one if you are trying to get the Dolphin.
Step six: hold your breath and book. There should not be a chance of getting something else as long as you confirmed that the number of trip advisor reviews is the same!
I did this twice on Sunday morning and got two rooms at the Dolphin. We absolutely love the Dolphin but my fiance and I booked a king room because we don't like the double beds, but I would still stay there if that was the only room choice.
Self parking is $23/night (I think, based on above posts), the resort fee is $32/night, so if you are driving add another $55 to the rate you see. But $142 all in for the Dolphin is a CRAZY good deal at this peak travel time, I am posting a screen shot of the Disney resorts, this is LESS than a Disney VALUE resort! Does not include magical express transfers, so figure in that cost of a Mears Shuttle or Uber if you are flying.