I've an inn owned by a brother and sister who both have the rent room faction, script attached. They work shifts in the inn, brother nights, sister days. If I rent a room from 1 of them, I can also rent a room from the other in the same day, get charged twice. Is there a check I can do so that once player has rented a room from either of the NPCs then the other will go straight to the dialogue "Are you kidding, you've already rented a room." when player, for some unknown reason, rents a room again?