Glossary A

• Add-on – A selection, typically at an increased price, added to a travel reservation.
• Adjoining rooms- Bordering hotel rooms that do not share a common door.
• Advance purchase requirement – Ticket must be purchased a minimum number of days before the flight departs.
• ARC - The Airlines Reporting Corporation - is responsible for supervising payments from travel agencies to airlines along with the manner in which tickets are issued to consumers.
• Airport access fee - A fee paid to the airport authority by car rental companies for the use of shuttle vehicles.  This often appears in customer’s car rental bills.
• Availability – The total number of seats allowed to be sold at a particular rate.