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": "binary_search", "description": "Performs binary search on a sorted list to find the index of a target value.", "parameters": {"arr": {"description": "The sorted list of integers.", "type": "List[int]"}, "target": {"description": "The target value to search for.", "type": "int"}}}, {"name": "find_majority_element", "description": "Finds the majority element in a list, which appears more than \u230an / 2\u230b times.", "parameters": {"nums": {"description": "The input list of integers.", "type": "List[int]"}}}, {"name": "find_missing_ranges", "description": "Finds the missing ranges between lower and upper in a sorted list of integers.", "parameters": {"nums": {"description": "The sorted list of integers.", "type": "List[int]"}, "lower": {"description": "The lower bound.", "type": "int"}, "upper": {"description": "The upper bound.", "type": "int"}}}, {"name": "count_vowels", "description": "Counts the number of vowels in a given text.", "parameters": {"text": {"description": "The input text.", "type": "str"}}}]
Identify the missing ranges between 10 and 20 in the list [11, 13, 15, 17, 19] and search for the number 15 in the same list.
user
assistant
[{"name": "find_missing_ranges", "arguments": {"nums": [11, 13, 15, 17, 19], "lower": 10, "upper": 20}}, {"name": "binary_search", "arguments": {"arr": [11, 13, 15, 17, 19], "target": 15}}]