user: Question: Which  ICAO has a Province of Heilongjiang, and a IATA of JMU?
Columns: ['City', 'Province', 'Country', 'IATA', 'ICAO', 'Airport']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Aksu [begins 27 October 2013]', 'Xinjiang', 'China', 'AKU', 'ZWAK', 'Aksu Airport']
SQL:

assistant: SELECT "ICAO" FROM "Table" WHERE "Province" = 'Heilongjiang' AND "IATA" = 'JMU';