user: Question: What is the total for guests with a ship name of rv indochina, and a crew smaller than 28?
Columns: ['Ship name', 'Year built', 'Length', 'Crew', 'Guests', 'Staterooms', 'Comments']
Types: ['text', 'real', 'text', 'real', 'real', 'real', 'text']
Sample row: ['Viking Emerald', 2011.0, '361 feet', 138.0, 246.0, 132.0, 'Yangtze River, China']
SQL:

assistant: SELECT SUM("Guests") FROM "Table" WHERE "Ship name" = 'rv indochina' AND "Crew" < 28.0;