Climbing from FL 90, Lose Contact with LLK

3 turns, word for word from the oral. Read the pilot lines out loud.

The exchange

3 turns in order

You, the pilot

Varanasi Control IFLY 160 Heavy, negative contact with Lucknow, position LLK 0630, passing FL 90 for FL 170, ETA BBN 0730, request FL 210

ATC

IFLY 160 Heavy Varanasi Control, maintain this frequency, climb FL 210

You, the pilot

Maintain this frequency, climbing FL 210 IFLY 160