Front of House Services & Systems Your guests interact with your hosts, waiters, and bartenders most often, and DALER can position your staff and systems to get the most out of that relationship. Beverage & Wine List Development Whether you’re a bar-only concept or the bar is a part of your larger project, beverage can be a great source of income and create a following among your guests. Being an expert in bar products and operations, we can take your beverage services to the next level.