You can tell if information and/or attachments have been included in a booking by checking the Details button. Find the session on your Dashboard in Upcoming Sessions or in the Tutoring Session page and look at the Details button with the paperclip icon. If the button has a green checkmark then there are details and/or attachments which you can download and/or view before or after a session. Just click the paperclip to access these. If there is a grey X then there are no details and/or attachments to view.
You will also receive a notification in your Kalvie account and an email whenever a user attaches details to a session booking.