"ill lose my job if i take that day off"
Do you want to fly? Do you live and breath it, waiting for an interview? Cause most people on here do...most would have cleaned toilets for a job if they had to, just for the chance of a call so if this is what you truly want then GO.
Its an incredible job, dont miss your chance if it's what you want to do because this chance doesn't come around every day
