Why can't Delta see another Sky Team flight?
I am currently booked, via Delta, on a Kenyan Airways flight on 1 Nov from Nairobi to Addis Ababa, Ethiopia as part of a longer Delta ticket (from the U.S. via Amsterdam to Nairobi). However, there is also the same flight on 31 October, and I have repeatedly called Delta to see if I can change my flight to 31 Oct (I'm flying on a changeable, Z Class (business) ticket. However, the Delta customer service rep on the phone keeps telling me there is no flight that day, even though a Kenyan Airways rep tells me there is, and also I can clearly see it on the Kenyan Airways web site. The Kenyan Airways rep say they can't change it because it's a Delta ticket.
Why can't Delta see this flight, if they're both part of Sky Team? Any suggestions? Thanks!