'interview slot' is correct and usable in written English.
You can use it to refer to a time set aside for an interview. For example, "I have a job interview tomorrow at 2 pm, my interview slot."
Then there's the interview slot.
Then Piers Morgan, a former Fleet Street editor, took over Larry King's interview slot on CNN.
The Test Match Special interview slot is fast becoming the sporting Desert Island Discs.
If you fail to respond by the deadline, your interview slot(s) will be given to an alternate candidate(s).
Like the cyclist Nicole Cooke, who featured in this interview slot last week, Ainslie is a 125-1 no-hoper.
Veteran correspondent Christiane Amanpour will take over the interview slot on PBS previously occupied by Charlie Rose.
And he has landed coveted interview slots.
We have no formal deadline for the submission of applications, but when our available interview slots have been filled, we no longer read applications.
All we wanted was rock'n'roll, not a hotchpotch of jazz, skiffle, classical, choirs and crooners, never mind the comedy, sport and eggy interview slots.
At Chicago, students must bid on interview slots, he said, and they are displaying a much stronger interest than last year in the big consulting firms and investment banks.
Meanwhile, students know about how early and how quickly the slots go, so they are always pressuring judges to give them the earliest interview slots possible, which effectively moves the entire system even earlier.
