You will need a perfect American accent and can speak naturally. You also need to have experience of recording audios with good qualities(e.g there is background noises.)
Here is the example of a conversation
Girl: I am really glad about the new printing rates.
Boy: Why are you glad about it?
Girl: Well, I think it is important to save paper. Students often don’t think twice about printing unnecessarily.
Boy: I guess that is true.
Girl: Yes. Students should review their work more accurately so that they don’t have to correct and reprint their documents a second or a third time. They should also avoid printing pages with large, blank spaces on them.
Boy: Do you really think the new rates will encourage students to use less paper?
Girl: I hope so. I think it’s a good start. The rate at which this university is consuming paper is not sustainable.
Boy: Yeah, I agree. I do feel, though, that the school should do something significant with the extra money.
Girl: Well, the school can use the extra money to buy more printers. The printing lines are always too long.
Boy: Won’t that encourage students to print even more?
Girl: I don’t think so. It will just save time. The higher price will still deter students from printing unnecessarily.
Boy: In that case, your plan is a great one! I always print my work at the last minute, and sometimes I am late for class because of the long printing lines.
Please record at least half of this sample conversation and attach it when you submit the application.