A：Hi！Can I help you？
B：Yes！please.I want to buy some food。
A：What？
B：I want to buy hotdog and cola.
A:emm..25dollars.please.
B：Here you are.
A：Thank you！
A: sir(madam),can i help you?\\what would you want to order?
B: I would like to order a hotdog\a glass of coca\\I would like a hotdog.
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