Unlocking a LG Dare VX9700 from Verizon requires unlocking software. Since the LG Dare VX9700 is offered by Verizon Wireless we know it is a CDMA phone and not a GSM phone. If you do have a GSM version of the LG Dare or basically if it has a SIM card in it, then you could use standard SIM unlock instructions such as provided here. Unfortunately unlocking CDMA phones is not nearly as easy.
This website provides some advanced CMDA unlocking software you can probably use with your Verizon LG Dare. Otherwise, for the most part unlocking the LG Dare from Verizon is probably not worth the trouble, as you can actually buy a pre unlocked LG dare from some online vendors.
You can learn more about the LG Dare VX9700 from Verizon by reading this review from CNET.