Setting your availability will ensure that only lessons within the set period of time can be scheduled for you with the company you are working with. To set your availability, you will need to go to the Profile section and then choose the Action tab.
From here, you can decide whether you want to set that availability as Bulk, or if you want to choose individual days that you have availability.
Select the available start and end times, then click the dates on the calendar where applicable, and click 'Save'. Alternatively, you can create availability for several dates at once by clicking the 'Mass Create' button and filling in the details.