We have our air reservations ticketed with Air France (Partner with KLM) booked with Expedia due to price. We have been trying to buy Economy Comfort seats for the long flight from AMS to KGL (Kigili, Rwnada). KLM's website will allow the data, but will not confirm. Air France has been unable to book the seats with a number of varying answers as to why. We do not have a telephone number for KLM in the US. We must call either Air France or Delta. KLM says we must wait until we arrive at the airport which will be 2 hours before, after arriving from CDG via transfer. Of course at that time no Economy Comfort seats will be available. We are open to any helpful suggestions. Our flights are not until the end of May 2013. Thank you.