It's a bit too geeky, most people would prefer to text you back with some personal message and most people would like to read them more than just observe blank

It's a bit too geeky, most people would prefer to text you back with some personal message and most people would like to read them more than just observe blank confirmations on a website. I believe the real problem is that people forget to RSVP and it is difficult to reach them with a reminder without calling them all with mandatory chit chat what wastes a lot of time.