Or something similar ?
I find myself as coordinator of 2-3 groups who meet up 3-4 times a year.
One is a real pain; I’ll send our 15(!) alternative dates, most people out of the six will reply ‘I can do this, this, not that, this’ etc, but one person will always reply with ‘I can do 15/8’. End of discussion. She absolutely does have other availability, but 15/8 suits her best.
Then others might change plans etc to accommodate 15/8- then she DOESN’T TURN UP (‘Sorry, long day, have fun, see you next time’ etc). But when we do all make it, it’s a fun night so we go on doing it (7 years, now!).
I digress. I’m looking for a free polling app so if ‘15/8’ polls lower, we go for the best one/s and she can suddenly find additional availability!