How to send an automatic email to a candidate about a delay in the hiring process

Summary:

Hi Experts,

I have a requirement, The Client wants to send an automatic email to a candidate based on his recent status.

If the status is still under review/screening, the candidate hasn't received any email from HR in the past two weeks, or the last email was sent two weeks ago.

The candidate should receive an automatic email from HR.

Like:

"We would like to thank you once again for your application and your interest in our company. We regret that our selection process is currently delayed. "

Can someone tell me how to achieve this goal?

Thank you.