This is also a big gripe of mine. I created an app that can be used as a fun "neutral" third-party when instructing my toddler to do something.
What I want it to say:
> Alexa, tell %NAME% it's time (for a nap|to go to bed|to eat dinner)
What I have to say:
> Alexa, tell Toddler Boss to tell %NAME% it's time to go to bed.
It's not natural sounding at all.