This combination of Associated Press file photos shows, left, travel agent, Gabriele Herlitschka leafing through an Asia and Australia travel catalogue in her travel agency office in 20

 

              This combination of Associated Press file photos shows, left, travel agent, Gabriele Herlitschka leafing through an Asia and Australia travel catalogue in her travel agency office in 20
This combination of Associated Press file photos shows, left, travel agent, Gabriele Herlitschka leafing through an Asia and Australia travel catalogue in her travel agency office in 2002, in Duesseldorf, Germany, and right, Expedia worker Mike Brown in an alcove set up for employees in 2013, in Bellevue, Wash. The number travel agents fell 46 percent from 142,000 to 76,000 in ten years through 2010. (AP Photo)