Last year JFK-LAS PMAA FAs --

About 45 minutes after breakfast cleared away in F - no refills, etc. -- I ring my call button - FA comes, "Is anything wrong?" with a smile.

Me "No, but can I have a cup of coffee, black please"

FA "I'll be doing another beverage in just a little while" smiles and walks away before I can say anything. My seatmate says, "I don't think you're getting a coffee." We laugh.

About 20 minutes later she comes into the cabin and starts taking drink refill orders.

Gets to our row - FA "What would you like?" with no reference to my previous order. Me - "I'd still would like the coffee I asked for 20 minutes ago." With not even a breath she asks, "How do you take it."

Seemed like a clear message she didn't see any obligation to fufilling requests via the call button.