Provided is a method, system, and program for implementing an auction. Scheduled event records for a user are maintained within a computer database, wherein each scheduled event record indicates a scheduled event for the user at a calendar time slot. A request is received for bids for a service from the user indicating a time period, wherein the service is to be performed during a calendar time slot within the indicated time period. A determination is made of scheduled event records for the user within the indicated time period. A template is generated to display a calendar for the indicated time period showing time slots. Available time slots comprise time slots in the indicated time period that do not include one scheduled event as indicated in the scheduled event records. At least one bid for the service is received for one available time slot in which the service is to be performed, wherein the bid indicates an amount.