Answer:
Although it sounds like I work on a transportation device I actually work in a restaurant.
I begin with the letter āiā, if you add āaā in front of me, I become a new word with a different meaning, but still sounds exactly the same. What word am I?
Lives in winter, dies in summer, and grows with its roots upward. What is it?
I hold two people together but touch only one. What am I?
I am easy to see, but no one likes looking at me. Without me, there would be no you. What am I?
It weighs next to nothing but no one can hold it for long. What is it?