user: Question: I want the ICAO for city of Xi'an
Columns: ['City', 'Country', 'Region', 'IATA', 'ICAO', 'Airport']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Changde', 'China', 'East Asia', 'CGD', 'ZGCD', 'Changde Airport']
SQL:

assistant: SELECT "ICAO" FROM "Table" WHERE "City" = 'Xi''an';