Patent ID: 7197538

Claim:
A system comprising: a server; at least one member terminal; and a network, wherein the server comprises: a member memory for storing a list of identification information of registered members; a reserved-member memory for storing a list of reserved-member information including at least one reserved time designated by at least one member and identification information of said at least one member; a cancellation time memory for storing at least one cancellation time; a member manager for managing the list of identification information registered in the member memory and the list of reserved-member information such that when a current time corresponds to one of said at least one cancellation time, the list of identification information in the member memory is canceled, and when the current time corresponds to one of said at least one reserved time, reserved-member information in said reserved-member memory that corresponds to said at least one reserved time is registered into the member memory; and a transmission controller for transmitting a message through the network to a member terminal having identification information registered in the member memory.