Hi, this is my first posting at milepoint. Here is my question. I had booked two NH award seats in JFK -(business)- NRT -(first)- JFK, using US miles (120,000 miles each) for flight in early next year, and I recently found two first NH award seats available for the same JFK--NRT flight. Since I already paid for first class miles for both award seats, I like to change the business-class award seats to first with no schedule change. Does US Air allow class change for award booking? If so, does US Air charge any reservation change fee for changing class?