Assistant: Can I help you, Miss White?

Miss White: Yes. I want a pair of  sandals, please.

Assistant: What size?

Miss White: Size ten .

Assistant: How about this pair? They are black. They are good.

Miss White: How much are they?

Assistant: They are 160 yuan.

Miss White: Oh. They are too expensive.

Assistant: These brown sneakers are cheaper. They're 30 yuan.

Miss White: OK. I will take them.