I booked a business class round trip from DFW to Milan (MXP) through AA AAdvantage on Finnair. Finnair has canceled one of the flights on my return leg. I reached out to AA to rebook and they informed me that they could only rebook based upon available award inventory. This will cause my return trip to delay by one and result in a hotel stay in Helsinki. Do I have any recourse to push AA to rebook out of all available inventory?