Building on the theme of leveraging an upcoming presentation meeting with a senior-level decision maker, consider this wording, "Hello Frank, my name is Mike Jones, and I am with AZT. The reason I am calling is this - I am preparing for a presentation to James Osborne and I believe that my presentation would be much more effective if I had a chance to gain some of your insight from an Operations perspective. Would you have 20-30 minutes to share with me sometime in the next week or so."
Recognize the subtlety? The meeting is not yet scheduled, but your request is still honest and well-intended.