And Caleb said, “Whoever strikes Kiriath-sepher and captures it, to him will I give Achsah my daughter as wife.” And Othniel the son of Kenaz, the brother of Caleb, captured it. And he gave him Achsah his daughter as wife.
Joshua 15:16-17 

All of Scripture assumes the right of a father to choose his daughter's husband, although choosing against her wishes would almost always be most unwise. It seems likely to me that Caleb, Achsah, and Othniel probably negotiated all of this privately before it was announced so that he would be positioned to take advantage of the offer before anyone else.