American Airlines said it will be able to sell all of its flight capacity as of July 1, leaving behind the limits for passenger transport designed to promote social distance amid the coronavirus pandemic. Customers will be notified when they book on crowded flights, and will be able to change their reservations at no charges, the airline said in a statement. As of June 30, American Airlines will also ask customers to certify that they were free of the symptoms of COVID-19 for the previous 14 days. The company is setting aside restrictions to fill aircraft cabins just as the pandemic worsens in parts of the United States. These areas include states where the carrier has major operations, such as Texas, Arizona, and North Carolina. American began back in April to keep 50% of half-empty seats in Economy, when possible.