Fires when the player is requested to confirm a gossip choice. Used when a gossip interaction involves a warning, such as for spending a large amount of money (e.g. purchasing Dual Talent Specialization).
index- The numeric index of the gossip option you're confirming (
message- The message to display for the confirmation (
cost- The cost of the action you're confirming. Will be 0 if there is no cost. (