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": "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 '2023-04-01' from YYYY-MM-DD to a format that shows only the month and year.
user
assistant
[{"name": "format_date", "arguments": {"date": "2023-04-01", "input_format": "%Y-%m-%d", "output_format": "%m-%Y"}}]