Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
what is the date for traction type electric with calgary location?

### Inputs:
table_name: table, columns: ['Name of System', 'Location', 'Traction Type', 'Date (From)', 'Date (To)']

### Response:
SELECT Date (From) FROM table WHERE Traction Type = electric AND Location = calgary