[... What sort of giant candle would that be? Erica doesn't sound so sure about that idea.]

It won't be as fun if you're only blowing out one candle! I wonder how someone could blow out a candle so large with only their breath anyway...? Ah, please don't hurt yourself trying to blow it out in your old age, Colonel Jade Curtiss.

[Hopefully her tone of voice properly conveys the fact she's being sincere in what she said and that she isn't making a poke at his age.]