I think we're confusing the original poster. There is no issue with interlining the bags. There is no issue with the agent in Berlin not being able to see the Paris-US flight info. Both flights here are on Air France.

You will be able to check-in with AF in Berlin. You don't need to be at the gate at the start of boarding. What matters is when they close the door / final boarding. That's usually about 20min or so before scheduled departure time.

>>>>>There is no issue with the agent in Berlin not being able to see the Paris-US flight info. Both flights here are on Air France.

Yes, but if you check in for the first flight, which is in one record, the agent will have no idea that there is a second record, with a different record locator. You will have to provide information about that connecting flight. The AF agent could then pull up that separate record and "see" it, but will still have to manually type in the information from the second flight into the originating record - - the two AF records cannot be "merged" into one - - they are still an apple and an orange - - the agent will never be aware of it unless informed by the passenger.