There are things you can do to make it a good experience, which can lead to a job offer. Be prepared to say in one sentence why you want the job. Also, be prepared to explain beyond that. Ask the interviewer to describe how someone succeeds in the job you're discussing. If you haven't had a particular experience, just say so.
Most employers are willing to train employees who want to learn.
Bring along a typed set of names of people who can, and will, speak about your work skills and habits. Include titles, companies, addresses, and telephone numbers. Get permission from these people in advance to use their names. Be rested and alert. This lets you be who you are.