Hello @Paola272,
Whatever price you set for your room is the price for one person provided you also set an extra person charge for each person after the first.
For example, go to your calendar and click on "Pricing settings" and then click on "Nightly price" and in the "Base price" box set a price of, say £20
Then click on "Extra charges and currency" and select "Additional guests" and set £10 for each guest after 1.
This means that your charge is £20 for one person but £30 if two people book.
You can set a different price for specific dates like festivals or holidays by clicking on those dates and entering a price.
You can set custom prices for specific weeks, months or weekends by exploring the options in "Discounts" and "Extra charges and currency".
These will also be the price for 1 person with your additional guest charge added if two book.
Steve.