An access management system includes a database configured to store access data including account identifiers and accessor identifiers, wherein the access data indicates particular accounts that have been accessed by particular accessors. The access management system also includes a computer system that receives a reservation request comprising an account identifier and an accessor identifier and determines whether the account identifier is included in the database. The computer system also determines, in response to the account identifier being present in the database, whether the access data correlates the account identifier to the accessor and authorizes the reservation of the one or more resources in the account by the accessor in response to the access data correlating the account identifier to the accessor.