Not sure how to describe my need but I'll try (I've included a demo chart too)
1. In the first step, a user chooses a record in Dynamics 365 and runs a manual flow.
2. In the second step, the flow creates records and updates a field in one of the records after creation. The field update is a trigger for workflow that run on the side of dynamics 365.
3. If the workflow succeeded (on the dynamics 365 side), the status reason field changes in the entry to "success" if the workflow fails, the status reason field is changes to failure value.
I'm looking for a way to 'leave' the user in the flow window until the workflow ends (on the side of dynamics 365) and display a message according to the state of the workflow result.