Function: purchase_insurance
This tool belongs to the travel system, which allows users to book flights, manage credit cards, and view budget information. Tool description: Purchase insurance
Parameters: access_token: type: string
description: The access token obtained from the authenticate
insurance_type: type: string
description: The type of insurance to purchase
insurance_cost: type: float
description: The cost of the insurance
booking_id: type: string
description: The ID of the booking
card_id: type: string
description: The ID of the credit card to use for the
Required parameters: access_token, insurance_type, booking_id, insurance_cost, card_id
Response: insurance_id: type: string
description: The ID of the insurance
insurance_status: type: boolean
description: The status of the insurance purchase, True if successful, False if failed