As a Listing Agent, be Proactive instead of Reactive and learn about the Reverse Prospecting feature under Contacts in Flexmls. 

This feature is a hidden gem that helps you to reverse prospect and find Buyer Agents with Contacts/Buyers who might be interested in your listings. Reach out to Buyer Agents who appear in your reverse prospecting list and let them know they might have a buyer whose criteria match your listings. It’s that easy!