I would resend email with dates, saying "Hi, I am wondering if you have a date in mind yet as I don't want to arrange something else on the date convenient for you, but lots of commitments need to go in my diary. Looking forward to a meet up" .... or something like that. However if you don't really want to see him ignore it after checking the email a truly went, and book things on the dates as necessary
🦞 Locked down no longer but still firm friends 🦞