We're booking our train travel for our trip to England and Scotland in August. Every route we've booked so far, we've received seat assignments for the journey. We just tried booking on ScotRail from Inverness to Edinburgh for August 14 and get the message that there is no reserved seating. Is this because it's coach class? Or because it's so early to book? Is there a chance of us not getting seats? (this happened to us five years ago from London to Edinburgh and we don't want a repeat).
Just wondering if this is something to be concerned about or no big deal for this particular route. Should we upgrade to first class or would it matter?