[That description matches what Steve had seen on his phone's screen, and so he nods. Seems like they've got the same person.]

Well, she is. Sounds like she wants to help us, too. She said she caught a glimpse of you when you were wandering around.

[Which is odd, because Natasha should have noticed, but it's possible Sif has a few tricks of her own, seeing how she's Asgardian.]

I asked her to look into the magic that runs this place, to see if she can find anything out. We'll see what she comes up with.