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": "get_vessel_photo", "description": "Fetch the image of a vessel using its ship ID from the Vessel Data API.", "parameters": {"shipid": {"description": "The ID of the ship for which to fetch the image.", "type": "str", "default": ""}}}, {"name": "serp", "description": "Fetches search engine results using the given query and optional parameters.", "parameters": {"query": {"description": "The search query to be sent to the search engine.", "type": "str", "default": "YouTube"}, "proxy": {"description": "The country to use as a proxy for the search. Defaults to 'US'.", "type": "str, optional", "default": "US"}, "max": {"description": "The maximum number of search results to return. Defaults to 10.", "type": "int, optional", "default": "10"}}}, {"name": "getuserbyid", "description": "Fetches and returns user information by user ID from a specified API.", "parameters": {"is_id": {"description": "The ID of the user to fetch information for.", "type": "str", "default": "1"}}}, {"name": "expiry_date_enquiry", "description": "Queries the expiry date of a vehicle's license registration using the given registration number.", "parameters": {"rego": {"description": "The vehicle's registration number.", "type": "str", "default": "1HNT923"}}}]
Could you help me with two things? First, I want to search for 'best hiking trails in Colorado' and get the top 5 results. Second, I need to retrieve user information for user ID 'U101010'.
user
assistant
[{"name": "serp", "arguments": {"query": "best hiking trails in Colorado", "max": 5}}, {"name": "getuserbyid", "arguments": {"is_id": "U101010"}}]