I have the same question, as I will receive replies through text messages that are like this:
Me: hey! Are we still meeting today? Where would be good for you? I'm open from 10am until 6pm so just let me know when works best.
Them: I can still meet today
I get responses like this all the time, and I don't feel like my initial text is too much.
Hey, he said he'd lower taxes. You can't tax $0!