A system for providing a service through a non-contact communication unit such as a wireless communication unit is disclosed. Specifically, an electronic ticket is communicated between a so-called mobile terminal and the non-contact communication unit equipped in a ticket examiner. The ticket examiner comprises a stocker for storing magnetized slips, roll paper or plastic slips, and a shaper for cutting the magnetized slip or the roll paper into a proper size. The ticket examiner confirms the validity of the electronic ticket for issuing a ticket.