Karen, just because you say you would like to remarry, it doesn't mean you want to marry the person you're dating.

I agree with you that honesty is the best policy.
I agree with you that honesty is the best policy. However, you may also want to use your first date with a person to figure out if you have other interests in common and if you feel comfortable enough to be yourself. Most adults know within a date or two if a person is compatible with them. If you keep seeing each other after date two, that may be a good time to mention that one of your goals is to be remarried. If your date asks you outright if you hope to get remarried, tell the truth.