Cold calling almost any boutique to ask for a leather bag can be awkward. While I don’t have a specific SA to recommend (I’ve had good service by all SAs at this location), I will say that they currently have a black 29cm 24/24 and a bambou 31cm(?) Bolide on display and readily available for purchase. If you do decide to make the trip to Chicago, call in advance as shopping is currently by appointment only.
Thanks so much for your response! Glad to hear all of your experiences at the Chicago location have been positive. I will definitely call in advance.