When you have been invited to interview, you can confirm your availability within your Profile. 

Once logged in, click on Interviews to see the slots that have been made available to you, allowing you to select the one that suits you. As part of each interview slot, you will see the date and time, as well as the location of the interview.

Hint - If its an online interview, each slot will include details of the zoom / teams link to access.

Click Select on the most suitable slot, then Continue to confirm your interview.

Once booked, you will then see the confirmation and may have the option to change the slot or decline the interview if required.