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": "registration_check", "description": "Checks vehicle registration information using the RapidAPI service.", "parameters": {"rego": {"description": "The registration number of the vehicle to be checked.", "type": "str", "default": "CC831Y"}}}]
What is the registration information for a car with registration number 'S123ABC'?
user
assistant
[{"name": "registration_check", "arguments": {"rego": "S123ABC"}}]