Please answer this: M: I'm afraid they are out of stock. You'll have to order them. It will take the publisher five days to fly them to us. What was said before this conversation?
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Answer: W: Excuse me. I'm looking for the textbooks for Germany course.

Please answer this: W: Sorry, mum asked me to go shopping with her. What was said before this conversation?
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Answer: M: Mary, would you like to have a picnic with us this Sunday?

Please answer this: W: Thank you. My father gave it to me as a birthday present. He knows red's my favourite colour. What was said before this conversation?
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Answer:
M: That's a nice dress you're wearing.