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Pricing

 
Greenhorn
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I am confused about the number of times the pricing usecase is called since the system initially prices the flights without a seat. How would it know what price to calculate since the user hasn't selected a seat yet?
 
Ranch Hand
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All depends on how you read the requirements and supporting information. While I would normally agree with you on that score - that it seems counter-intuitive as to why you could price it without having selected a seat - I think there's actually a fairly clear reason laid out in the materials provided.

At least, that's how I'm finishing up my design.
 
Consider Paul's rocket mass heater.
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