You don’t say how old “Hillary” is, but a simple, polite response is all that’s called for: “Oh, I know this sounds like it might be fun for Hillary, but we’re going to make this trip on our own. Maybe another time we can have her join us.”
You don’t say how old “Hillary” is, but a simple, polite response is all that’s called for: “Oh, I know this sounds like it might be fun for Hillary, but we’re going to make this trip on our own. Maybe another time we can have her join us.”