If you add an optional welcome intent to your Amazon Lex V2 bot model, your
AppInstanceBot can announce itself and its capabilities when it
joins a channel. The welcome intent can display a message, or it can initiate a
dialog with channel members. The name of the of welcome intent can vary, and you
define it in the AppInstanceBot's configuration.
For more information about intents, see Adding intents in the Amazon Lex V2 Developer Guide
