code: @Controller(pattern = "(?i)(setup meeting)", next = "confirmTiming")
      public void setupMeeting(Event event) {
          startConversation(event, "confirmTiming");   // start conversation
          reply(event, "Cool! At what time (ex. 15:30) do you want me to set up the meeting?");
      }
docs: Type "setup meeting" to start a conversation with the bot. Provide the name of the next method to be
  invoked in {@code next}. This method is the starting point of the conversation (as it
  calls {@link Bot#startConversation(Event, String)} within it. You can chain methods which will be invoked
  one after the other leading to a conversation.
  
  @param event