Consider a stock trading platform built using a microservices architecture. The platform allows users to place orders, execute trades, update account balances, and notify users of trade statuses. Each of these functions is handled by different microservices.

Describe how you would use the Saga pattern to ensure data consistency and reliable transactions across these microservices, especially in scenarios where one or more of the services might fail during a trade execution process. How would you handle potential rollbacks and compensating transactions? $[5$ Marks$]$