(Reuters) - The S&P 500 index fell on Wednesday when trading resumed after an initial automatic 15-minute cutout, as investors priced in a complete breakdown in business activity and consumer spending from the coronavirus pandemic. With airports and hotels emptying and airlines asking staff to take unpaid leave to stem losses, the S&P 1500 airlines index sank 27.6%, while shares in Hilton , Marriott and Hyatt hotels fell by 25.5% to 36.5%.President Trump's request for Congress to approve..