Before you offer up your evenings and weekends, be sure that you are clear on what Air New Zealand needs from their next Flight Attendant by carefully reading the posting details and job description for the position. Typically, the hours are laid out in the job description. If it only says part-time or full-time and you are asked about the hours you're available to work, it is okay to ask questions regarding the expected hours for clarification. Once they have laid out the expectations, you can tell them that the expectations meet your availability. You want to show your interviewer that you're excited about the job, and you are willing to make yourself available to work when they need you.