A: I can't believe how long this line is. B: This is a popular restaurant, isn't it? A: Yes, but it isn't a fast-food restaurant, is it? B: It's the slowest hamburger in town. A: That's because they cook it while you wait. B: Yes. That's why it's also the best hamburger in town. A: A great burger and great service. B: Yes, the workers are very polite. A: And they're clean. B: I've been coming here for years. A: Me too. B: Excuse me. They just called my number.