Depends what you mean by "smart assistant". Spew a bunch of trivia on a random subject? Sure. Understand your speech commands better? Maybe. Actually manage your stuff (meetings, reminders)? Nope.
ChatGPT is good at making up pieces of text that come very very close to what you wanted (more so in the spirit rather than the letter of it), but it's not very good at anything else.
ChatGPT has potential to create meeting invitations. I asked it:
Today is 2023-08-07. I’m in Tokyo. Draft a calendar invitation for coffee meeting at Starbucks in Shibuya during lunch time on Wednesday. Answer in ics format.
It answered:
BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//ChatGPT//EN
CALSCALE:GREGORIAN
BEGIN:VEVENT
SUMMARY:Coffee Meeting at Starbucks Shibuya
LOCATION:Starbucks Shibuya, Tokyo
DTSTART:20230809T120000
DTEND:20230809T130000
DESCRIPTION:Let's meet up for a coffee and chat at Starbucks in Shibuya during lunchtime.
END:VEVENT
END:VCALENDAR
Requires a bit of prompt engineering to make it work, but this can probably be improved with some fine tuning. All you need is something that detects and parses ics invitation in the output.
Depends what you mean by "smart assistant". Spew a bunch of trivia on a random subject? Sure. Understand your speech commands better? Maybe. Actually manage your stuff (meetings, reminders)? Nope.