Rajendra Lama’s phone has barely stopped buzzing. In between coordinating rescue operations for flood survivors with the Nepal Mountaineering Association and running his travel company, he spends his days communicating with anxious tour groups, trying to persuade them not to cancel their trips. “We have a crisis in one part of the country, but we’re open elsewhere and are not affected by the floods,” said Lama, a tourism entrepreneur with over 20 years of experience. “I’m just trying to...