Startup Idea: Lead Matching Software for Small Businesses

Startup idea to build a real-time software for small business owners that keeps track of clients' buying and selling needs and auto-matches them based on variables like potential profit, date, buying for the most and selling for the least.

I'm a very small business owner. I'm not sure exactly what field my business would fall under but basically I find whatever it is my clients may be wanting to purchase and I also find buyers for whatever it is my clients may be wanting to sell. So the problem I have is having to remember which specific clients wanted to buy or sell which specific items. Same goes for my suppliers. For example if I meet someone who happens to mention they have a cheap bicycle for sale and I remember someone at some point wanted to buy a bicycle but I can't remember who or how long ago. So I think some sort of software that would allow me to enter what people are wanting to purchase and what people are wanting to sell and auto populate matches that are organized by date potential profit, such as selling cheapest or buying for the most, would be amazing.