Please complete the below tasks given the prompt.

Prompt:

The Area Transit Authority $($ATA$)$ is a rural public transportation company. ATA operates a fleet of $25$ buses that serve approximately $1,000$ riders each day. The bus operation involves $10$ regular routes, plus routes for special events. The ATA employs $20$ full$-$time drivers and $10$ to $15$ part$-$time drivers. A dispatcher coordinates the staffing and routes and relays messages to drivers regarding traffic information and special passenger pick$-$up arrangements.

Tasks:

Identify possible actors and use cases involved in ATA's bus operations.

Create a use case diagram for the bus system.

Create a sequence diagram for the use case you selected.

Create a state transition diagram that describes typical passenger states and how they change based on specific actions and events.