[Minato only heard about Aang from Ikki and since he introduced himself in his post, well, he might as well address the young (but 100 years old) airbender.]

I'm certain she does. [Since Ikki's really a good girl. Real helpful too when they first arrived in Luceti!] Ah, by the way, I think this is the first time we've talked. My name's Minato. I heard about you from Ikki herself when we arrived a couple of months ago. She was very helpful to me and my family.