It sure didn't for us in December- Looked good at time of booking but came back to a message saying cant reserve seats at this time- Went back and forth for months with a Tug of war not it situation with Delta/KLM. The codeshare between them is kind of a joke but after having nightmares of a cramped back row with our 5 year old and 26 hours of multiple flights we ended up with an entire row of 5 seats just between the three of us on both inbound/return legs.