According to the woman, for how long will the man’s package get to Columbia?

M: Give me a pack of first class stamps, please.
W: Here you are. That will be five dollars. Anything else?
M: Yes, I want some postcards and some foreign airmail stamps. I want to send some letters to South America.
W: Just a moment. I’ll look up the rate for airmail letters to South America.
M: Can you tell me how much it will cost to send a package to Columbia? Also, I want to know how long it will take.
W: Do you have the package with you? I would have to weigh it to see how much it would cost. There are several ways to send packages to foreign countries. The fastest way costs the most, of course. I’ll give you an example. If you had a two-pound package and you wanted to send it the fastest way, it would cost about six dollars, and it would take about a week to get there.
M: Do you insure packages?
W: Yes. All you have to do is to declare the value of the package and decide how much you want to insure it for. The rates are reasonable.
M: Is there a way that I can be sure that the person in South America received my packages?
W: The post office rarely loses package. You can, however, request a return receipt. With a return, when the delivery person gives your friend the package, your friend has to sign for it. Then we will notify you that he or she has it.
M: What about those overnight delivery services I see advertised on television?
W: They’re usually as good as the post office, but they may cost more. Also, remember that they only have services within the United States.
M: One last question—what are your hours?
W: We open at eight-thirty in the morning and close at five thirty in the afternoon.
M: Thank you, you helped me a lot.