Being a Certified Financial Planner (this may be called something else in your region) is a prestigious designation because it shows your clients that you can meet their needs despite the evolving requirements in the financial planning realm. During your certification, you take a plethora of topics including financial analysis, retirement plans, education, and disability plans, economics, credit and debt, investments, law, insurance, and more.
If you already possess industry certification(s) that is great! Take the time to discuss what you learned and express the importance of continued education.
If you are not yet certified, be sure to let the interviewer know that gaining further industry designations is in your short-term career.