Dear [Guest],
Hope all is well. I am sorry we haven't been able to connect. I know life is crazy right now, but I wanted to reach out again as I noticed your announcement of [insert a recent announcement, social media post, etc].
Since I last emailed, our podcast has been steadily growing with [recent podcast achievements such as new guests, audience growth, additional programs]. I know your thoughts would be invaluable to our audience and I believe the community would align well with your work in promoting [insert guest's current initiative]!
Do you have a quick moment to chat about being a guest on our podcast? I've attached additional info about the show below. Feel free to email me back or if it's more convenient, select a time from my [Automated scheduling link] here!
Best,