To find it definitively:
1. Consult your owner's manual: This is the best resource. It will show a diagram of the fuse box(es) and relay locations.
2. Look for a fuse box or relay box on the driver's side: They are often located under the steering column or behind a panel near the steering wheel. These boxes will have removable covers.
3. Check the labels: The flasher relay might be labeled "turn signal," "hazard," or simply have a symbol depicting flashing lights.
If you can't locate it using these steps, a search online for "2000 Dodge Dakota flasher relay location" along with images might help. You could also consult a local auto parts store; they may have diagrams or know the common locations for that model year.