Suggestions:
Ladies ~
Dressy-Casual: below the knee dresses, slip dresses, a dressy skirt and top, or an elegant pantsuit with heels, nice wedges, or formal flats
Casual: summer dress or floral patterned mini with wedges or dressy sandals
Gents ~
Dressy- Casual: dress shirt and slacks with dress shoes, with the option of wearing a tie
Casual: dress pants or khakis paired with a collared shirt and dress shoes, with the option to also style their look with a sports jacket or tie