Americans are increasingly tapping their credit lines as Covid-19 health restrictions ease and travel need ramps back up, American Express CEO Steve Squeri informed CNBC on Monday.The payments company, understood for its namesake credit card, reports seeing a near-full recovery in domestic travel reservations after the industry was hamstrung by Covid lockdowns.” We also think that by the end of the year in the U.S. we will have a complete consumer healing from a travel perspective, and overall by the end of the year I think globally well most likely be about 80% of what we were in 2019,” he added.The Transportation Security Administration evaluated 2.03 million individuals at airports on Friday, the first time in 15 months that more than 2 million guests have passed through checkpoints in a single day.Still, thats simply 74% of travel volumes on the very same day in 2019, according to the agency.American Express is seeing a rebound in restaurant spending, too, Squeri said, with May dining costs totaling 85% of May 2019 levels.” Delinquencies at American Express are at their lowest levels in years, and personal cost savings have doubled, Squeri said.