There are two ways to set prices in FrontDesk Master. One of them is season pricing.
To create a season open Property Management / Seasons.
Click the Edit Season List button at the bottom left of the window.
Press the Add Season button, put a name, a color and save the changes.
In the calendar mark the days that correspond to the given season and click on the name of the season.
The previously blue dates will change color (depending on the chosen season). Save the changes!
Each color will mean a different price.
Open then Prices from Property Management menu:
There you can configure the prices for each room type, rate and season.