Hello *|FIRST_NAME|*,

It was a pleasure talking with you at Name of Event on date. I appreciate you taking the time yesterday to share information about Name of contact's Company.

I am very impressed by the work your company is doing, and I would enjoy hearing more about how we can help you reach your goals. As promised, I have attached additional information about the services I feel would best suit your needs.

I will call or email you next week to ask you about scheduling a meeting.