Suggested meeting spot at airport for parties arriving at T2 and T3 at PEK

Looking for a good meeting spot for 2 parties to meet so we can find our driver. I arrive at T2 Delta and my sister arrives T3 American Airlines. We arrive 15 minutes apart and we are to meet a drivewr to pick us up. Is the baggage claim in one spot for all the airlines? Where should we meet so we can find our driver.