[gdheiwmow]

If I were you, I'd make a visit to the place and ask in person. I always have panic attacks about saying something wrong or forgetting what to say when I'm about to call someone, but people are usually really friendly and more relaxed in person. And being surrounded by dogs will surely comfort you and make you feel more confident about asking, since you say you really want to work with the animals there.

As for the interview, those are always scary, and the employer should be understanding of that. Just try your best to relax and answer to the best of your abilities.