A: I'm so tired. I don't know how I'm going to make it through this lecture.
B: The professor is a bit boring today. You need something to perk yourself up. How about a coffee?
A: I don't really like coffee, to be honest. It's too bitter for me.
B: Well, you need something to wake you up. How about a soda?
A: Most soda drinks have too much sugar in them.
B: The diet sodas don't have any sugar in them. Which one would you like?
A: I like diet Sprite. Does that have any caffeine in it?
B: Unfortunately, it doesn't. How about some diet Coke?
A: I don't care for Coke. I heard that Coke was first used as a medicine and I don't like medicine. What else has caffeine?
B: Maybe you should try a cappuccino or a latte, they taste much better than plain brewed coffee.
A: Maybe. How about a mochaccino? Are they any good?
B: You'll love that. It's just a shot of espresso beans mixed with steam milk and some chocolate syrup.
A: That's perfect. Would you like one, too? My treat.
B: Thanks. But I'll stick with some jasmine tea. I'm trying to watch my diet.