Since you are a buyer, unless you signed some paperwork that requires your working with your
current agent, you should be able to terminate your relationship, but do that in writing (if you signed
an agreement, just read that to see how the termination clause is working).
Before you do though, maybe have a heart to heart with this agent - and let him/her know
your expectations and how you feel about their performance (or, rather, lack of it). If there is no
understanding, then talking to the agent's broker might help.
Best of luck,
Beachfront Realty, Inc.