Where was I? Times of day 意思?

有一段有關參加運動俱樂部的對話，其中以下二句，不懂中文的意思，請教先進們的指導。

Student: How does it cost?
Staff: Depends on when you want to use the facilities? Oh, and you are a student here, right?
Student: Yes, I am.
Staff: I only ask because we are open for non-students but they pay more. Where was I?
Student: Times of day.
Staff: Right, yes. OK. There are the plans for the different kinds of charge....


以上對話中，最後二句，
工作人員詢問: "Where was I?"
然後學生回覆: Times of day.

這二句話是什麼意思?


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