1. You need to call ASAP. You're already past the initial booking day for your outbound. You could have called two weeks earlier to secure your outbound first.

2. I don't know where you're transferring your miles from, but in general, it's a bad idea to transfer before you book. Should have reserved your seats first, and then transfer. Otherwise, you may now have 200K miles that you can't use in your account.

3. Like others say, there may simply be no BF seats loaded for the flights you want to start with.