Outdoor interviews are a challenge. Wind can play havoc with large reflectors or silks.
If you’re doing the “beautiful interview,” I’d recommend doing the interview as early or late in the day as possible. If you’re shooting a subject who is actually doing something at the time, the lighting isn’t nearly as critical.
If you can’t do that, you may want to place the subject so that the sun backlights him/her, and use a small reflector for fill. In the middle of the day you may still get sun on the subject’s nose. Or place the subject under a tree, aim for as dark a background as you can find, and let it blow out to the extent necessary.
— Bob C