The coronavirus pandemic might change air travel for a long time. In particular, airplane tickets are expected to become more expensive, as airlines are forced to comply with public health measures: fewer seats on flights, longer boarding times, and social-distancing in airports.(https://www.thestar.com/business/2020/05/08/why-flying-is-about-to-get-a-lot-more-expensive-for-good.html). Assuming this is the case, and using a supply and demand diagram, explain why airplane ticket prices will rise.