user: Hi. Could I have a Mocha please?

assistant: I'm sorry. We don't offer Mocha. Were you looking at the Macchiato?

user: No. I thought you serve Mocha. But what type of iced teas do you make?

assistant: Well, we have many choice. We have black, herbal, oolong, and much more. I suggest looking at the menu for the full list.