How to improve business in an airport based currency exchange especially in the areas of Sales, Manpower and Workplace?

Generally speaking Airport based Currency Exchanges are considered expensive than down town.

Considering this the overall TAM ( Total Available Market ) is reduced. People usually prefer to buy forex when conversion is cheaper or in need.

Increase of Sales - Visibility clearly of exchange rates & some assurance that the same is competitive.

Some approach of Loyalty scheme for regularly will surely help in increasing business.

Co Promotion with Taxis, POI ( Point of Interest ) Tickets, Restaurant Discounts will increase value for customer.

Manpower - Staff should be highly motivated & should have a pleasing personality. Personal Touch with regulars. Staff should be trained to be very quick like a QSR restaurants. 

Workplace - Train people in upselling & cross selling other products or push to increase business from every customer, a VOC / Sharing Platform where staff can share & be rewarded for ideas that worked which others can replicate to increase overall business.