Please answer this: M: Yes, can you show me the way to gatenine for flight 910 to Hong Kong? I am quite confused here. What was said before this conversation?
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Answer: W: Can I help you sir?

Please answer this: F: OK, see you later. What was said before this conversation?
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Answer: M: It starts at half past seven, but let's meet at seven.

Please answer this: W: Thanks. You have a nice house. What was said before this conversation?
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Answer:
M: Come on in. Make yourself at home.