"Employers are looking to hire cashiers with great customer service skills and experience handling cash. In preparation for an interview, come ready to answer role-play questions that will assess your ability to appease difficult customers under stressful circumstances. Make sure to showcase a positive and easy-to-work-with attitude that will convince your interviewer you're right for the job."
They just ask for availability and willingness to work.
I said: Of coarse, I am willing to learn and work.