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": "is_subset", "description": "Checks if one set is a subset of another set.", "parameters": {"set1": {"description": "The first set.", "type": "set"}, "set2": {"description": "The second set.", "type": "set"}}}, {"name": "format_date", "description": "Converts a date string from one format to another.", "parameters": {"date": {"description": "The date string to convert.", "type": "str"}, "input_format": {"description": "The format of the input date string.", "type": "str"}, "output_format": {"description": "The desired format of the output date string.", "type": "str"}}}]
Convert the date '2023-01-01' from 'YYYY-MM-DD' to 'MM/DD/YYYY' format.
user
assistant
[{"name": "format_date", "arguments": {"date": "2023-01-01", "input_format": "%Y-%m-%d", "output_format": "%m/%d/%Y"}}]