What would you do?

So my husband has a class for work tomorrow and another guy he works with is gonna have to bring his daughter with him as he has no one to watch her. I was thinking about offering to watch her so he can attend his glass without his daughter there that way he can focus on that, I have 5 kids of my own. 9, 5, 4, 3 and a 2 month old. So it’s nothing new to me what’s one more haha but anyways would it be weird to offer I don’t know this person so I’m not sure if they would think it’s weird or not a stranger offering to watch someone’s kid or if the daughter would feel comfortable going to a strangers or not. I’m a nice person so I always feel for people in certain situations. What would y’all do? I didn’t even bring it up to my husband yet, he brought this up earlier in a convo we had and I was gonna say I could watch her but didn’t know if he’s be ok with it either so I just want to know what y’all would do?