They say a journey of a thousand miles begins with a single step. For people who want some personal help reaching their destination, the first step is to call a travel agent. Travel agents sell transportation, lodging, and admission to entertainment activities to individuals and groups planning trips. Travel agents sort through vast amounts of information to find the best arrangements for travelers. They find fare and scheduling information, calculate travel costs, and book reservations for everything from extended multi-country tours to short excursions nearby. Agents also provide information about required documents, local weather conditions, customs and attractions. Corporate travel agents specialize in making travel arrangements for businesses. Most travel agents work full time in offices but some work remotely, since so much of their work is done by phone and computer. Agents in call centers or large offices may work in noisy, crowded conditions. Dealing with travel emergencies and last minute schedule changes can be difficult. Typically travel agents require a high school diploma, but many employers prefer additional formal training.