user: Question: What is the operator name when the distance is 3105km?
Columns: ['No', 'Origin City (Country)', 'Destination City (Country)', 'Train Name No', 'Operator Name', 'Distance', 'No. of Stops', 'Frequency', 'Scheduled running time']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Moscow ( Russia )', 'Vladivostok ( Russia )', 'Rossiya 002', 'Russian Railways', '9259km', '67', 'Alternate days', '178 hrs (~7 days)']
SQL:

assistant: SELECT "Operator Name" FROM "Table" WHERE "Distance" = '3105km';