Originally Posted by
ajggiant
When dlflyer00 said "it won't matter for first", I understood this meant the issue of ticketed passengers without assigned seats, which is almost entirely driven by BE sales, and BE tickets without seat assignments aren't relevant on the First class seat map. My experience is that even if you don't select a seat while booking on DL.com, DL will auto-select a seat. Outside of BE, what are the remaining methods to be ticketed without a seat assignment? It will happen on very full flights, and I've read here that certain travel agency bookings can create that, though I don't know if that's still true.
Purchasing tickets on partner ticket stock, or tickets even on DL stock with partner marketed flight numbers, can be one cause of this.
But what you quoted from me wasn't related to seat assignment; it was DL trying to prevent F from being sold for less than Y on the same routing. This is why the dual inventory check, and lots of seats being sold in main cabin/basic, can affect F prices on DL now; because as the main cabin fare moves up, the dual inventory check will cause the F fare to move up as well, even if no additional sales were actually made in the F cabin.