The term TRAVEL (TRIP PLANNER) can be summarized by the crossword solution AGENT, which is a 5 letter word. An AGENT is someone who acts on behalf of another person or organization. In the context of TRAVEL, an AGENT is someone who helps plan and book trips for their clients. They are knowledgeable about different destinations, transportation options, and accommodations. Agents can also provide advice on activities and attractions to make the most of a TRIP.