A method for brokering purchases of procedural services between a buyer and at least one professional service provider is a software-based system that negotiates transactions between potential clients and professional service providers by receiving, verifying, and negotiating appointment availabilities and appointment offers while providing privacy to both parties until a transaction is conducted. The system comprises the steps of receiving and indexing appointment openings from providers, receiving and indexing appointment offers from buyers, matching appointment opening with appointment offers, anonymizing appointment offers, and negotiating the exchange of personal information between both parties when a transaction is conducted, as well as provide ancillary product suggestions. The system provides functionality to match a submitted appointment offer anonymously with at least one professional service provider. Additionally, the system provides automated features that improve matching of the appointment opening and the appointment offer by user submitted parameters of system derived value optimums.