What is the order number? Which line shows productivity correctly?

F: Hello, can I speak to your purchasing manager, David?
M: David Speaking.
F: Nice to hear you. I am calling to confirm your order No. 330.
M: When can we expect our order?
F: We will deliver your order at two thirty next Monday. Is that OK?
M: Goad.

M: These figures are interesting, aren’t they? I expected to see the highest productivity in the earliest part of the day, and the lowest at the end.
F: But... in fact, the peak time’s just before midday, isn’t it?
M: And performance is better at the end of the day than it is after lunch. I imagined it’d be the other way round.