New York has 6 different degrees of conspiracy charges. The difference between them is the level of the crime that was the object of the conspiracy. In all of them, though, the conspiracy is “with intent that conduct constituting a crime be performed, he agrees with one or more persons to engage in or cause the performance of such conduct.” See Article 105 of the NY Penal Code.
If Brenda tells Chuck where he may buy drugs, then Brenda and Chuck arguably are agreeing to cause the performance of conduct that constitutes a crimes, i.e. that Chuck will buy illegal drugs from the dealer Brenda suggested. Brenda certainly could be charged by the DA with that. Whether she'd get convicted would depend on whether the jury believes the evidence that the state presented against her is sufficient to make her guilty of conspiracy.