You just obtained an Availability Calendar (for "Advanced" or "Premium" packages). It is now time to set the "Closed" days of your property, the Available days and their corresponding prices.
Then, you start by adding the Rates periods. Click on the first day of the season, until the end of your "low season" and set the price. Continue with the rest, the "medium", the "high" and the "peak" seasons. Every time, you set the daily price for them.
If you have setup a price for a period, you will see your calendar with a light blue color, so you know what is left.
Also, if you let your mouse over a "priced" day, you will see the price for this days.
Of course, you can also check, the auto-updated Rates table into your listing.