Add a new employee to the system.
Args:
    name: str
    manager_id: str
    email: str
Returns:
    str

Get the details of an employee by name.
Args:
    name: str
Returns:
    Dict[str, Any]

Send an email to an employee.
Args:
    to_email: str
    subject: str
    body: str
Returns:
    str

Create a ticket for an new employees to get a new laptop, id card, and other necessary equipment.
Args:
    emp_id: str
    item: str
    reason: str
Returns:
    str

Schedule a meeting for an employee.
Args:
    emp_id: str
    meeting_dt: datetime
    topic: str
Returns:
    str

Get the leave balance of an employee.
Args:
    emp_id: str
Returns:
    str

Apply leave for an employee.
Args:
    emp_id: str
    leave_dates: List[datetime]
Returns:
    str

Get the leave history of an employee.
Args:
    emp_id: str
Returns:
    str