A ticketing method that permits a plane ticket or the like to be easily obtained via an in-house system. A ticket booking service request is sent to a net server from a PC through a LAN. Then, an airline company selection screen is sent from the net server to the PC in response. When an airline company is selected from among the airlines displayed on the PC, a connection is established to a ticket reservation system of the selected airline company through the Internet. Data for the ticket booking is sent to the net server from the PC. The ticket booking data is sent to a ticket booking and issuing terminal from the net server, and then to the reservation system through a dedicated line. The booked ticket is issued from a ticket issuing printer on the basis of the ticket issuing data supplied from the reservation system.