Bought cash through travel agent, ticketed as 055, but very first and last flights on Delta, with one leg AF, one KLM, and 2 AZ. Was able to get delta to replace the 2 AZ and 1 of theirs (3 legs) with a different 1 of theirs and a KLM (now 2 legs). In fact, there had been a different unrelated cancelation earlier, and now the ticket doesn't have a single leg that was in the original routing. Even better, 6 legs are now 4, I now have 006 ticket, and a different departure date, due to a huge change in arrival time at destination other skyteam flights. Looks like Delta is being very accommodating. Doesn't hurt that the flights are only at about 25% of capacity.