You don't need technical skills to create and edit website pages and to maintain it up-to-date.
A travel agent knows how to find the best offers, but finds it very difficult to display them on the website. Many times he is depending on an IT guy to do this which increases the travel agency’s costs.
Usually, travel agencies have small teams (from 1 or 2 people) and they should not hire an IT person to solve hosting problems, manually introduce offers on the website, make complex DNS configurations, manage servers, allocate resources etc.