What were the keys to your career advancement? Who else do you know who is doing similar kinds of work or uses similar skills? Still, something caught your eye, so rather than dwelling on the fact that you're just looking for any job, explain why you chose to apply to this one in particular.
I absolutely loved it as I interacted with customers and learnt how to provide good customer service as well as stand on my feet all day. Do you know of other people whom I might talk to who have similar jobs? Good luck and if you feel anxious this is normal, just find a way of understanding and managing your anxiety and you will be fine.
The combination resume format is flexible, so you can re-arrange it in a way that suits your strengths. What kinds of decisions do you make? I usually do thorough interview preparation, research the company and industry beforehand. Which trade or professional journals and organizations would be helpful to me as I learn more about this field?
Can you suggest some ways a student could obtain this necessary experience? Pick a dozen or so questions that will help you get the most out of your informational interview.