This is one chant you could use to cast and dismiss the circle. Written by my own sweet self.
The East, the Air
The sylphs, the wind
Positive forces,
I call you in.
The South, the Fire,
Spirits of the flames, my kin,
Positive forces,
I call you in.
The West, the Waters,
The undines, the seas,
Positive forces,
Please come to me.
The North, the Earth,
The plants, the gnomes,
I call to the positive forces
Within the loam!
And back to East again.
As above, so below.
This circle is cast.
The North, the gnomes,
The plants, the Earth,
I thank thee for attending
This magic's birth.
The Waters, the undines,
The seas, the West,
I thank thee for being here
To bring about the best.
The South, the spirits,
The flames, the Fire,
I thank thee for thy help
In attaining my desires.
The East, the wind,
The sylphs, the Air,
I thank thee all
For being here.
And back to North again.
The circle is open, but unbroken.
So mote it be.