First, you should find award availability for two people on dates that will work for you. With that mix of points, you'll probably need to focus on SkyTeam airlines (create an account and search on airfrance.us before transferring anything) or Star Alliance (search on united.com without needing to create an account). If you find flights that will work on SkyTeam, you can transfer points from both accounts to your new Air France account and book their. It should be 160,000 miles total for the two of you. If you find availability on Star Alliance, transfer 120,000 miles from Chase to United and book one round trip ticket and one one-way with United. Then transfer 45,000 miles from Amex to Aeroplan (Air Canada) to book the other one-way. You'll have to create an account there too. United and Air Canada should have access to the same space so you can mix and match. You shouldn't have a problem booking a ticket for your girlfriend with any of those programs.