https://www.cnbc.com/2020/08/11/boeing-order-cancellations-outpace-new-sales-for-sixth-straight-month-as-demand-continues-to-fall.html
https://www.cnbc.com/2020/08/11/boeing-order-cancellations-outpace-new-sales-for-sixth-straight-month-as-demand-continues-to-fall.html