<http://schema.org/description>
"Delta Air Lines Inc.(DAL) recently released the operating figures for September. The carrier reported a 3% decline in passenger revenue per available seat mile (PRASM: a measure of unit revenue)."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.zacks.com/stock/news/233607/delta-air-lines-traffic-and-capacity-increase-in-september>