Can I help you, sir?<br />Yes, please. I want to buy a school bag for my son. He is 13 now.<br />How about this one? It is perfect for a middle school student.<br />It looks cool. He also likes the color. How much is it?<br />$22. But today it is on sale. You can take it at $20.<br />Okay. I'll take it.<br />Can I help you, sir?<br />Yes, please. I want to buy a school bag for my son. He is 13 now.<br />How about this one? It is perfect for a middle school student.<br />It looks cool. He also likes the color. How much is it?<br />$22. But today it is on sale. You can take it at $20.<br />Okay. I'll take it.