Abstract: In a self-service system of selling travel-related services or products by means of an interactive travel service system functioning like a travel agent, to simplify the search process by the system and the decision process by the user, the user is first queried as to travel knowledge, such as whether the user is a first-time visitor or is otherwise familiar with the travel destination, and as to personal attribute such as family orientation, age and preference for airlines, lodgings, car rental companies, price range and lifestyle. In accordance with the travel knowledge and attributes inputted electronically by the user, one or more recommendations or a whole listing will be presented for selection by the user. To simplify the process, the user is asked to input the relevant dates and the inventory database is searched so that only available choices will be presented.