An imparting unit determines whether to issue a coupon or calculates a point on the basis of a staying time in the limited area, the coupon and the point being exchangeable with an article provided in the limited area by a user who is a soon-to-be passenger to board a plane. The limited area indicates an area in which a soon-to-be passenger stays until he or she boards a plane after a security check. In addition, the staying time in the limited area indicates an elapsed time from entry to the limited area to a predetermined imparted timing. An output unit outputs, on a mobile terminal of the user, information notifying of an issuance of a coupon when the imparting unit determines to issue the coupon, or information about the point calculated by the imparting unit.