How to integrate calendar into AmoCRM form and use in Wordpress?

Question

WordPress

The task is to insert a smart calendar into the form for sending an application on the website for the exit of a specialist, which checks the free window by time and date in AmoCRM. Please tell me an article or material in which this can be found or write how this can be done. Thanks in advance. In standard forms, it is possible to add a calendar field, but it does not check this time for relevance.