What do I say about why I left my last job? after 12 years as an administrative assistant

I have an interview next week and I am unsure how to explain why I left my last job as an administrative assistant. I have been trying to stay organised about it. I also do not want to seem like a risk. What do you say?

I keep it to two sentences: the company cut my team, and here is what I am proud of and what I am looking for next.