[speaker001:] What can I do for you?
[speaker002:] I'd like to buy some milk powder. What would you recommend?
[speaker001:] We have many kinds of different purpose. I wonder whom you are buying for?
[speaker002:] My son. He is two years old.
[speaker001:] I see, sir. This one is very good.
[speaker002:] Is it?
[speaker001:] You may rest assured. It sells well.
[speaker002:] May I have a look at the introduction?
[speaker001:] Certainly. Here it is.