Give me a pack of first-class stamps , please .   Here you are . That will be five dollars . Anything else ?   Yes . I want some post cards and some airmail stamps . I want to send some letters to South America .   Just a moment , I'll look up the rate for air-mail letters to South America .   Can you tell me how much it will cost to send a package to Colombia ? Also , I what to know how long it will take .   Do you have the package with you ? I would have to weigh it to see how much it would cost .   Do you insure package ?   Yes . All you have to do declare the value of the package and decide how much you want to insure it for .   Is there a way that I can be sure that the people in South america receive my package ?   The post office rarely loses package . You can , however , request a rectum receipt .   One last question-what are your hours ?   We open at eight-thirty in the morning and close at five-thirty in the afternoon .   Thank you , you helped me a lot . 