@cgema I think you did a great job in responding to this customer. Unfortunately, it seems like they may have been short on time and chose another route, but I did notice that you received a courtesy refund for this contact.
Your quote message is really great! It's clear, simple, and to the point. One small tip I have would be to insert your phone number in the quote message. Since they were short on time, it may have helped the customer get back to you a bit more quickly as opposed to the messenger.