A shuttle bus service is a public transport bus service designed to quickly transport people between two points . Such a bus will shuttle backwards and forwards between the two points, normally without any intermediate stops and with a high frequency of trips. Such services are often designed to serve specific customers, such as hotels, attractions, park and ride routes or airport bus services. They may also be used to replace train services when rail lines are closed (for maintenance, or during emergencies). Unlike regular bus routes shuttles are usually but not always free of cost.
After the trip has been planned and reservations made, the travel advisor is still there to answer questions, such as about visa requirements or currency exchange. He or she will also assist in making changes to the reservations if necessary, and may also suggest purchasing travel insurance to insure the cost of the vacation in case of unexpected changes such as illness. Once on the trip, the travel agent may be contacted if any problems with service arise that he or she is capable of resolving.