I am difficult to understand:

Kimli: can I get a 2 hamburger combo to go please?
McMary: ok you want Coke with that
Kimli: diet coke please – actually, no, could I just have a big cup full of ice instead?
McMary: ok coke with lots of ice
Kimli: no, no coke – just a cup, with ice in it
McMary: but what you want in ice
Kimli: nothing, just the ice
McMary: so you don’t want combo?
Kimli: I guess not; I don’t need the drink – but can I have a cup with ice in it?
McMary: but combo is cheaper, you want coke to drink?
Kimli: can I have a combo but instead of a drink, just get ice?
McMary: what you want with ice? Coke?
Kimli: *tears*
McManager: here, just take a bottle of water and I’ll give you a big cup of ice
Kimli: THANK YOU
McMary: *calling to drink person* I need a coke please
Kimli: *runs away*