Abstract: A system of an embodiment includes an analysis device that includes a first database for storing information for identifying a person and an object inside an image, performs, using the information, image analysis of footage taken by cameras installed in locations, associates an identified person, an object carried by the person, and a seat location with each other, determines, based on a user facial image and the user's seat location, whether a person associated with the seat location is the actual user, and outputs a verification result; and a device that includes a second data base for storing a seat, a facial image and identifying information of each user, transmits information on the user's seat and the facial image to the analysis device, receives the verification result from the analysis device, and transmits an alert to a predetermined point of contact.