At times you may not know the answer to a question, that too is fine.

Be honest with the caller and either indicate that you will explore the answer and get back to them, or point them to the Space Weather Prediction Center website, spaceweather.gov!

Note that http://www.swpc.noaa.gov/content/newsroom and http://www.swpc.noaa.gov/content/contact-us contain contact information via e-mail and telephone as well as offer a link to SWPC's frequently asked questions.