Ah, the good ole' dining room. Usually the least demanding room (in electrical terms), we've somehow managed to wildly over-engineer it.
It's listed as one of the areas that needs AFCI protection.
It's also listed as an area that needs to be served by a GFCI, 20-amp, SABC. Note that only a TOTAL of two SABC's are required for all of the areas served by the SABC's, and you've set the stage for every kitchen counter recep to be served by one, while the dining room is served by the other.
Since the dining room circuit is an SABC, it is not allowed for the room lighting to be on it. If you had, for example, a food warming table, those heat lamps could be plugged into the SABC.
Sure, it's "possible" that come Thanksgiving, Granny might have all the kin over, and set up coffee pots and crock pots in the dining area ..... but, really now .... isn't this the trade equivalent of wearing both suspenders and a belt?