It puzzles me how many people at HN are so eager to defend dark patterns.
If you look at the screenshots with more attention:
1. Google tells me that the free seat selection is included
2. Delta tells me that if I agree to this price, I will be able to reserve the last available seat on the flight (for this price)
3. Once I confirm the price, Delta tells me that I can’t select the seat, it’s not available. I can still buy the ticket, but the offer has changed. Sure, since clearly I need to get on this flight (booking it last minute) - I would rather pay a bit more to make sure I do have a seat.
This is what dark patterns are all about. How is that so hard to understand?