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": "min_meeting_rooms", "description": "Finds the minimum number of meeting rooms required to accommodate all meetings.", "parameters": {"intervals": {"description": "A list of meeting time intervals, where each interval is represented as [start_time, end_time].", "type": "List[List[int]]"}}}]
Determine the number of rooms needed for meetings starting at 13:00, 13:30, 14:00, and ending at 14:00, 14:30, 15:00 respectively.
user
assistant
[{"name": "min_meeting_rooms", "arguments": {"intervals": [[13, 14], [13.5, 14.5], [14, 15]]}}]