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.