You can enter the required information for the dispatch (such as the workerID, status, due date etc.) and it would create and dispatch the assignments for your worker to use through the workforce field app, basically bypassing the dispatcher's app, however you would need to make sure that you understand the workforce schema (link below) and how the status and assignments are defined. If there's no good reason to do so, I think there's benefit in doing this part through the workforce dispatcher app, which is built for this and provides the dispatcher with the interface he requires.
Automate and script Workforce—Workforce for ArcGIS | ArcGIS
