I had a parallel thought when a loved one was in the hospital. I noticed the nurses were so busy that small requests like an extra blanket were often forgotten entirely. How incredible would it be to have a voice system that would build a task list and capture other notable bits of information that the hospital staff could review on an integrated device (like a phone)?
Sadly, I don't see this ever happening due to the insane number of regulations you'd have to satisfy and the major players in this space only doing it to collect PII.