What type of business do the speakers most likely work for?

W: I know you missed our department’s weekly meeting while you were on vacation last week, so I sent you a summary by e-mail. One thing we decided was that I’ll be attending a trade fair in Dublin along with two other representatives.
M: Oh, really? l attended that event last year and found it really helpful for finding new merchandise for our stores.
W: I would like you to go this year, too. We are planning to attend on September 13 and 14. I hope you don’t have anything else scheduled.