Abstract: A related user identifying unit identifies a related user who has a given relation to an assigned user to whom at least one seat has been allocated. A restriction target selecting unit selects, as a restriction target, a seat or a group of seats that is adjacent to the seat allocated to the assigned user and that is not allocated to any user. An allocation restricting unit restricts the allocation of the seat or group of seats selected as the restriction target to any user other than related users for a given restriction period. A second allocation unit allocates, in a case where the request is received from the related user, the seat selected as the restriction target, or at least one seat out of the group of seats selected as the restriction target, to the related user.

Abstract: A related user identifying unit identifies a related user who has a given relation to an assigned user to whom at least one seat has been allocated. A restriction target selecting unit selects, as a restriction target, a seat or a group of seats that is adjacent to the seat allocated to the assigned user and that is not allocated to any user. An allocation restricting unit restricts the allocation of the seat or group of seats selected as the restriction target to any user other than related users for a given restriction period. A second allocation unit allocates, in a case where the request is received from the related user, the seat selected as the restriction target, or at least one seat out of the group of seats selected as the restriction target, to the related user.

Abstract: A first reception unit receives an application for purchasing a physical ticket or an electronic ticket from a user. A purchase processing executing unit executes purchase processing of the ticket in a case where the application for purchasing the ticket is received. A second reception unit receives an application for canceling or transferring the ticket from a purchasing user who has purchased the ticket. An exhibition processing executing unit executes an exhibition processing for putting up the ticket for an auction service in a case where the application for canceling or transferring the ticket is received.

Abstract: A reception order setting unit sets an order for receiving an application from a first user. A reception standby unit holds start of reception of the application on standby, based on the order. An estimated reception start time and date information obtaining unit obtains estimated reception start time and date information on an estimated time and date at which reception of the application will be started, based on the order. A presentation unit presents to the first user the estimated reception start time and date information. The estimated reception start time and date information obtaining unit updates the estimated reception start time and date information, based on a reception completion state concerning an application from a second user with an earlier order than the order of the first user. The presentation unit is able to present to the first user the estimated reception start time and date information updated.

Abstract: A determination unit determines whether or not a number of desiring users who want to apply to reserve or buy the same product or service is equal to or smaller than an upper limit number. A reception order setting unit sets a reception order for receiving an application from each of the desiring users. In a case where the number of the desiring users is not equal to or smaller than the upper limit number, a first reception unit selects the number of users equal to or smaller than the upper limit number from among the desiring users, based on the reception order, and receives an application from each of the selected users. Meanwhile, in a case where the number of the desiring users is equal to or smaller than the upper limit number, a second reception unit receives an application from each of the desiring users.

Abstract: A related user identifying unit identifies a related user who has a given relation to an assigned user to whom at least one seat has been allocated. A restriction target selecting unit selects, as a restriction target, a seat or a group of seats that is adjacent to the seat allocated to the assigned user and that is not allocated to any user. An allocation restricting unit restricts the allocation of the seat or group of seats selected as the restriction target to any user other than related users for a given restriction period. A second allocation unit allocates, in a case where the request is received from the related user, the seat selected as the restriction target, or at least one seat out of the group of seats selected as the restriction target, to the related user.