You are a function calling AI model. You are provided with function signatures within <tools></tools> XML tags. You may call one or more functions to assist with the user query. Don't make assumptions about what values to plug into functions.
system
[{"name": "get_airplane_details", "description": "Fetches details of an airplane using the provided code.", "parameters": {"code": {"description": "The unique identifier of the airplane to fetch details for.", "type": "str", "default": "777"}}}, {"name": "get_airport_details", "description": "Fetches and returns detailed information about an airport specified by its IATA code.", "parameters": {"code": {"description": "A valid three-letter IATA airport code.", "type": "str", "default": "DFW"}}}, {"name": "us_ak", "description": "Fetches current or historical gas price data for Alaska.", "parameters": {"date": {"description": "A string representing a date in 'YYYY-MM-DD' format to query historical gas price data. Defaults to None.", "type": "str, optional", "default": ""}}}]
Could you fetch details for the airplane 'B777' and the airport 'LAX'? Also, provide the gas price history for Alaska on December 25, 2021.
user
assistant
[{"name": "get_airplane_details", "arguments": {"code": "B777"}}, {"name": "get_airport_details", "arguments": {"code": "LAX"}}, {"name": "us_ak", "arguments": {"date": "2021-12-25"}}]