1. A method for implementing a custom call flow, comprising: receiving a sequence of user inputs provided as part of an interactive call between a caller requesting a service and a service provider that provides the service, the sequence of user inputs including data path inputs, security inputs, administrative inputs, and a termination input; identifying placement of the security inputs in the sequence; removing the administrative inputs and the security inputs from the sequence; creating a custom sequence including the data path inputs, a placeholder representing the placement of the security inputs, and the termination input; and invoking the custom call flow from the custom sequence received from the caller each time the caller initiates a request for the service; wherein the custom sequence uses the placeholder to prompt the caller to enter the security inputs at a location specified in the placeholder of the custom sequence.