Abstract: It is possible to provide a party reservation support system enabling an organizer of a party to consult with participants about eating and drinking establishments and date and make a reservation for a particular eating and drinking establishment at a particular date.

Abstract: A system for providing plans to eating and drinking establishments, having eating and drinking establishment information storage unit; reservation information storage unit; plan acceptance device for receiving information relating to plans set by the eating and drinking establishments from terminals of the eating and drinking establishments. The system stores this information in the eating and drinking establishment information storage plan unit. A plan retrieval device for receiving search conditions for the plans from the user terminals is provided and configured for performing a search in the eating and drinking establishment information storage unit in order to determine whether or not there are plans that agree with the search conditions, and sending the search results to the user terminals.