"The Inner Rim is controlled by the First Order," Ren says, stepping inside the house. This man is offering him hospitality, so he'll be cordial to a certain degree. It's advantageous at this moment considering he has no idea where he is and if he's in a friendly system.

"None of this antiquated architecture would be present on an Inner Rim planet. That's why I presume we're in the Outer Rim. What system is this?" He doesn't know if this man truly is unaware of what system this is (which is possible, if he's never left it) or if he's deliberately being vague.