Ensure that your interviewer knows you are aware of all aspects of working for the Air New Zealand cargo operations team by talking about the duty on the job posting that you consider the most challenging. As you answer, try to emphasize some of your strengths or past/equivalent experience that will enable you to nevertheless be successful in this role. Be smart about why you consider this aspect of the job challenging and explain why you have the tools to overcome it, if hired to be their next Ramp Agent. If possible, try to base your answer on a simple lack of direct experience.