I am planning a trip using AA awards on JAL for my family. While searching for availability on BA, we cannot get any flights to Osaka / KIX connecting through Tokyo - we want to take a connection there to explore for a day (less than 24 hours - so not a stopover). If I find availability on the US to Tokyo portion, how do I 1) find availability for Tokyo-Osaka and 2) what is the proper way to ask or instruct the AAgent to book it? Thanks!