Tell us what you're working on, where you are in the publishing process, and what has you stuck.
You don't need a perfect pitch or a complicated intake form. Tell us what you're working on and what kind of help you think you need.
Your book's approximate word count and genre.
Where you are in the process: drafting, editing, formatting, or ready to publish.
Which service you are interested in, if you already know.
Any deadline or release date that matters.
If you're not sure what you need, say that. That's a perfectly reasonable place to start.