Not sure how to be more specific. I'm using the multi-city search function. I want to travel next June, so the flights are not loaded yet. I'm just using dates where flights are available. For example:
May 13, 2020 SFO-IAD-ADD-WDH for 80K miles
May 21, 2020 WDH-JNB-LUN for 30K (should be zero)
May 25, 2020, LUN-ADD-TLV-SFO for 80K