A: Hi sir, what can I get you today? B: I'll have one glass of iced tea. A: I'm sorry, but we are out of iced tea. B: How can you be out of iced tea? A: We didn't get all of the ingredients. B: Iced tea is all I want. A: Sir, we have plenty of other drinks. B: I guess lemonade would be okay. A: Lemonade coming right up! B: Wait. You should give me a discount. A: I will give you a 15% discount. B: Good! This restaurant is doing something right today.