We're not far from all this being possible (although legal or advisable is a whole other matter):
Drones are summoned much like taxis in other popular service apps. Your desired task is either noted at the outset using presets, or customized using voice commands. Once the drone arrives, your phone's flashlight is used to pair your device with the drone. From there, it depends on the task, the object-based UI is very easy to understand.