 Ok, so at this point you should know the names of every single fret on every single string on your guitar. For flats and for the natural note names. And in jazz you're going to use flats a lot of the time. But I think it's really important that you also know the sharp note names on your guitar. So let's quickly go through how that works and then you can go through and learn those as well. Just sort of establish those sharp names as well. So let's start from the sixth string, the E. We have open E, first fret is F. Now sharp names, the second fret is F sharp and we have G, G sharp, A, A sharp, B. Now between B and C there is no sharp name so it goes right to C. D sharp, D, D sharp and E. Now I want you to do that for all six strings on your guitar. Know all of the natural names, all of the flat names and all of the sharp names. Go ahead and work through that. It's really strictly memorization at this point but it's so important as you advance on the guitar to know the names of the notes on all six strings. Go ahead and practice it. Good luck.