system: 
You are an expert in composing functions. You are given a question and a set of possible functions.
Based on the question, you will need to make one or more function/tool calls to achieve the purpose.
If none of the function can be used, point it out. If the given question lacks the parameters required by the function,
also point it out. You should only return the function call in tools call sections.

If you decide to invoke any of the function(s), you MUST put it in the format of [func_name1(params_name1=params_value1, params_name2=params_value2...), func_name2(params)]

You SHOULD NOT include any other text in the response.

Here is a list of functions in JSON format that you can invoke.

[{'name': 'Services_1_BookAppointment', 'description': 'Book an appointment with a hair stylist or salon. The appointment time and date must be specified. Note that the provided function is in Python 3 syntax.', 'parameters': {'type': 'dict', 'required': ['stylist_name', 'appointment_time', 'appointment_date'], 'properties': {'stylist_name': {'type': 'string', 'description': 'The full name of the hair stylist or the name of the salon.'}, 'appointment_time': {'type': 'string', 'description': 'The time of the appointment in 24-hour format (HH:MM).'}, 'appointment_date': {'type': 'string', 'description': "The date for the appointment in the format of 'YYYY-MM-DD'."}}}}, {'name': 'Services_1_FindProvider', 'description': 'Search for a hair stylist in a specified city, with the option to filter by whether the salon is unisex. Note that the provided function is in Python 3 syntax.', 'parameters': {'type': 'dict', 'required': ['city'], 'properties': {'city': {'type': 'string', 'description': "The city where the salon is located, in the format of 'City, State' (e.g., 'New York, NY')."}, 'is_unisex': {'type': 'boolean', 'description': 'Flag indicating if the salon is unisex. True for unisex, False for gender-specific.', 'default': False}}}}, {'name': 'Weather_1_GetWeather', 'description': 'Retrieves the weather forecast for a specified city on a certain date. Note that the provided function is in Python 3 syntax.', 'parameters': {'type': 'dict', 'required': ['city'], 'properties': {'city': {'type': 'string', 'description': "The name of the city for which the weather is being requested, such as 'Los Angeles' or 'New York'."}, 'date': {'type': 'string', 'description': "The date for which the weather forecast is desired, in the format 'YYYY-MM-DD'. If not provided, the default is the current date.", 'default': 'current_date'}}}}]


user: I need to book an appointment with John's Barber Shop for a haircut on March 15th at 2 in the afternoon

Available functions:
[{"name": "Services_1_BookAppointment", "description": "Book an appointment with a hair stylist or salon. The appointment time and date must be specified.", "parameters": {"type": "dict", "required": ["stylist_name", "appointment_time", "appointment_date"], "properties": {"stylist_name": {"type": "string", "description": "The full name of the hair stylist or the name of the salon."}, "appointment_time": {"type": "string", "description": "The time of the appointment in 24-hour format (HH:MM)."}, "appointment_date": {"type": "string", "description": "The date for the appointment in the format of 'YYYY-MM-DD'."}}}}, {"name": "Services_1_FindProvider", "description": "Search for a hair stylist in a specified city, with the option to filter by whether the salon is unisex.", "parameters": {"type": "dict", "required": ["city"], "properties": {"city": {"type": "string", "description": "The city where the salon is located, in the format of 'City, State' (e.g., 'New York, NY')."}, "is_unisex": {"type": "boolean", "description": "Flag indicating if the salon is unisex. True for unisex, False for gender-specific.", "default": false}}}}, {"name": "Weather_1_GetWeather", "description": "Retrieves the weather forecast for a specified city on a certain date.", "parameters": {"type": "dict", "required": ["city"], "properties": {"city": {"type": "string", "description": "The name of the city for which the weather is being requested, such as 'Los Angeles' or 'New York'."}, "date": {"type": "string", "description": "The date for which the weather forecast is desired, in the format 'YYYY-MM-DD'. If not provided, the default is the current date.", "default": "current_date"}}}}]

Ground-truth function call:
[{"Services_1_BookAppointment": {"stylist_name": ["John's Barber Shop"], "appointment_time": ["14:00"], "appointment_date": ["2023-03-15"]}}]