What position does the woman probably hold?

M: I would like to place an order for toner cartridges. We have a standing agreement with you company. It should be under the name of Leslie Smith, and the number is 184796 A.
W: Let me key your information into my computer. Yes, Mr. Smith. I have an order for three cases of cartridges, is there anything to refill?
M: Yes, please post the bill to 124 Hildrod Lane, Milton County, 98830.
W: I will send you an invoice tomorrow. Your order should be delivered before next Monday.