How does dooobi work?

The flow is: a sender creates a delivery request or a traveler creates a trip offer; the two sides find each other and one proposes a match; the other accepts, which creates a transaction; the sender pays the platform fee; the traveler picks up the package (confirmed by a QR scan); the traveler travels and arrives; the sender pays the agreed reward; delivery is confirmed (by the sender or, if enabled, the receiver via a QR code); and finally both sides can leave a review.