Hello Stephanie,

thanks for reaching out to us. It requires a bit of thinking "out of the box",  but it's possible. There are some things that needs to be done.

First, in the Customize section / Event List, you would need to hide the Event price

Then, in the Event settings, you need to set the opening time for the event to something larger than the Event Begining time. For example -

Lastly, you would need to hide the button with the CSS code - 

.am-button--medium.am-button--primary {
    display: none!important;
}

Custom code needs to be applied to the page where the booking form is. Depending on what you're using (Gutenberg blocks, or some page builder), adding the CSS or JS can be done in a few different ways. 

If you need help with adding custom CSS to the page, please take a look at this article.

In the end, you will get something like this - 

Of course, you can hide the "Learn more" button right away with this CSS

.am-button--plain.am-button--primary {
    display: none!important;
}

To get something like this 

but the whole purpose of Events is to give an option to the customers to see the details first and then book.

Please, let me know if it works.