Forget about the little details like how she's signing her emails. Just stick to the facts.

Give her the dates for the C (the sooner the better), and give her the number to call to make the reservation herself.

M-43 W-40
2D - 9 and 5

Emotion, yet peace.
Ignorance, yet knowledge.
Passion, yet serenity.
Chaos, yet harmony.
Death, yet a new life.

RECONCILED AND WISER