Which clients can reach out to me with a booking request?

All job postings that match your skills are available in your project list. In addition, clients can manually select you for a booking if you have already worked with them, and are in their favorite list. These clients can send you an exclusive booking request, which are available in your dashboard or via "Find an opportunity," when you filter for "Jobs assigned to you."
 

Tip: If no bookings are being displayed, trying deleting some or all of your preset filters.