Quote:
"Hey, I am taking the kids to mini golf and to get ice cream on Saturday, you can join us if you want, I am sure the kids would like that"

I wouldn't add the "kids would like that" pressure. Otherwise perfect.

Quote:
"hey, I am taking the kids to mini golf and to get ice cream on Saturday, what were you planning to do? "

You are not going to ask her about her plans.