Not that lengthy in the past, anybody who experienced to travel anywhere called their travel agent and they arranged the journey. At that time, journey agencies received commissions from airlines, hotels, and rental cars companies. So, in most cases, customers didn't pay any extra for the service. And travel brokers https://www.latimes.com/travel/deals/la-tr-tip-sheet-christmas-holiday-train-rides-20171013-htmlstory.html