Hi [first-name],
You request a demo this week which I am following up on. Before I can give you a demo, could we set up a call to chat? We have a couple of products so need to really understand what you are looking for in a system.
Please let me know a date/time that works best for you.
Thanks!
[your-name]
Sales Manager
Mobile: +[your-phone-number]
[your-email]
[your-business-name]
[your-business-address]