A new model?

Courier :- "zzpliuiqrrcv"
Pickle :- "Welcome to Earth".
Courier :- "srreioptlqqvllziio".
Pickle :- "Thank you, I forgot you can't speak the language, I will translate, 'here is the new spaceship you requested, I will ferry the old one back to Ascalonia for a re-fit'. And now, bgghrinskemmqx, hulpqurtic, ('thanks, bye')".
Pickle :- "Look, Pearl, our new and improved 2006 model, faster and more economical on fuel, not that the price of anti-gravity has gone up".
LITTLE FLY upon the box/ You'll see it has only two locks/ But if Pandora hears of you/ She'll open the box and you'll be through.