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_movies_by_year", "description": "Fetches a list of movies released in a specified year from the IMDb API.", "parameters": {"movie_year": {"description": "The year to filter movies by. Defaults to None.", "type": "int, optional", "default": ""}}}, {"name": "get_movies_by_name", "description": "python", "parameters": {"movie_name": {"description": "The name of the movie to search for. Defaults to None.", "type": "str, optional", "default": ""}}}, {"name": "titles_id_aka", "description": "Fetches alternative titles for an IMDb title using its ID.", "parameters": {"is_id": {"description": "IMDb ID of the title (e.g., 'tt0000002').", "type": "str", "default": ""}}}]
What movies were released in the years 1980 and 2018? Also, find me the alternative titles for the movies with IMDb IDs 'tt0080684' and 'tt4520988'.
user
assistant
[{"name": "get_movies_by_year", "arguments": {"movie_year": 1980}}, {"name": "get_movies_by_year", "arguments": {"movie_year": 2018}}, {"name": "titles_id_aka", "arguments": {"is_id": "tt0080684"}}, {"name": "titles_id_aka", "arguments": {"is_id": "tt4520988"}}]