Waiter: Hello! Can I help you?
Sam: Yes, please. I am very thirsty.
Waiter: Oh! What can I get you?
Sam: Can I have some water, please?
Waiter: Sure. Cold water?
Sam: Yes, please!
Waiter: Here is a glass of water.
Sam: Thank you very much!
Waiter: You're welcome.
Sam: The water is cold and good!