private async Task <DialogTurnResult> FoodTableViewAsync(WaterfallStepContext stepContext, CancellationToken cancellationToken)
{
var client = new HttpClient();
var resp = await client.GetAsync("https://www.hansung.ac.kr/web/www/life_03_01_t2");
var result = await resp.Content.ReadAsStringAsync();
var html = new HtmlDocument();
html.LoadHtml(result);
var htmlNode = html.DocumentNode.Descendants("table").Where(x => x.GetAttributeValue("class", "").Equals("table-b table-b-menu")).First().ChildNodes[7];
var htmlLunch = htmlNode.ChildNodes[1];
var htmlDinner = htmlNode.ChildNodes[2];
var cardGenerator = new CardGenerator();
var lunch = TodayFood(htmlLunch);
var dinner = TodayFood(htmlDinner);
await cardGenerator.AttachFoodCardAsync(stepContext.Context, lunch, dinner, cancellationToken);
return(await stepContext.EndDialogAsync(cancellationToken));
}