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": "fibonacci", "description": "Calculates the nth Fibonacci number.", "parameters": {"n": {"description": "The position of the Fibonacci number.", "type": "int"}}}, {"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"}}}, {"name": "flatten_list", "description": "Flattens a nested list into a single-level list.", "parameters": {"nested_list": {"description": "The nested list to be flattened.", "type": "List"}}}]
I have a nested list [1, [2, [3, 4]], 5]. Can you flatten it and find the 20th Fibonacci number?
user
assistant
[{"name": "flatten_list", "arguments": {"nested_list": [1, [2, [3, 4]], 5]}}, {"name": "fibonacci", "arguments": {"n": 20}}]