have arrivals request to slow down if they're getting close and still fast

[mmp]

• 18-20nm and 250 kts
• 14-18nm 210kts
• 8-14nm 190kts
• FAF-8nm 180kts or less

[mmp]

"When can we start to slow?"
"Can we start to slow?"
"Do you still need the speed?"
"Do you still need 210kts?"
"We need to start slowing"
"ah....how much longer do you need 210kts?"