Function: compute_exchange_rate
This tool belongs to the travel system, which allows users to book flights, manage credit cards, and view budget information. Tool description: Compute the exchange rate between two currencies
Parameters: base_currency: type: string
description: The base currency. [Enum]: USD, RMB, EUR, JPY, GBP, CAD, AUD, INR, RUB, BRL, MXN
target_currency: type: string
description: The target currency. [Enum]: USD, RMB, EUR, JPY, GBP, CAD, AUD, INR, RUB, BRL, MXN
value: type: float
description: The value to convert
Required parameters: base_currency, target_currency, value
Response: exchanged_value: type: float
description: The value after the exchange