Excellent service is one of the hospitality industry's primary objectives. Hotel visitors rely on hospitality staff for many of their travel needs. Hotel staff comes through in a pinch when a traveler forgets to pack his toothbrush or seeks a recommendation for a local hotel. Similarly, diners often ask restaurant wait staff to recommend a particular meal or to accommodate a dietary restriction. Hospitality providers often measure performance rates of their customer objectives by surveying their customers. They encourage customers to visit a survey website, and often provide incentives, such as discount coupons, for customers who complete online surveys.