Quick follow up question. To reiterate context, my company has booked me on a flight from JFK - SFO, and I have OWS through JAL. I managed to get an exit row seat in MCE. I am booking a separate ticket for my wife and will try to get her next to me. My understanding is that she also gets this for free, even on a different booking and unlinked PNR.

I want to check if there's any restriction on the fare I buy for her ticket - i.e. can I get the cheapest basic economy ticket and chat online with support to get the seat changed, or do I need to buy something higher?

Thanks!