Nanashi nods in affirmation that Nanashi is, in fact, his name.
For the briefest of moments he is shocked that Kuro doesn't know who is calling. He kinda assumed that these phones were tethered to them, but that would be silly anyways, they are just normal phones for this area...
probably...
"It's Nanashi. We're here at the gate towers and we seem to be lacking tickets. We are currently looking for the Io woman that you mentioned, but are we going to need to procure these tickets? Is there anything we should know about them?"