private async Task AfterWhoIsDialog(IDialogContext context, IAwaitable <double> result)
{
var score = await result;
var playerName = context.ConversationData.GetValue <string>(Constants.PLAYER_NAME_KEY);
await LeaderboardService.SaveScoreAsync(playerName, score);
await context.PostAsync($"💯 You are done! Your final score is: **{score}**.");
await Utils.SendEventAsync(context, Constants.END_GAME_EVENT, score);
// cleanup
context.ConversationData.RemoveValue(Constants.LAST_PERSON_KEY);
context.ConversationData.RemoveValue(Constants.RECENT_PEOPLE_KEY);
context.ConversationData.RemoveValue(Constants.PLAYER_NAME_KEY);
context.ConversationData.RemoveValue(Constants.SCORE_KEY);
context.Done(true);
}