There are 2 types of lessons you can book: instant lessons and scheduled lessons.
Instant lessons start here and now.
Scheduled lessons require that you choose a specific day and time slot.

To book a lesson:
1. Choose a tutor you want to learn from > click "Book trial lesson" or "Buy Package".
2. If you buy a lesson package, click "Schedule now" and choose date and time > click "Continue", OR skip "Schedule now" to schedule the lessons later.
3. Complete the payment.

You can find your unscheduled lessons in "My lessons" > "Unscheduled lessons", and schedule them anytime.