Confidence abounds at the headquarters of American Airlines, the world's biggest carrier, where the CEO recently declared that his company would never lose money again. And why not? US airlines are enjoying a golden age. Strong travel demand, cheaper jet fuel and fewer competitors are combining to push profits sky-high. The No. 2 man at American, Robert Isom, spent years trying to make more flights arrive on time. Since being promoted to president in August 2016, Isom's portfolio has expanded to oversee the rollout of new products including Basic Economy, a bare-bones seat that, American hopes, will seem so unattractive to passengers that they will pay more for a better one. Isom recently sat down with The AP. Like his boss, CEO Doug Parker, Isom said American will make money even during downturns. And he said the future is so bright that employees will be able to "sign up for American for life." Story has edited transcript of interview.<br/>