Script write for a sale presentation

Num. of words: ?
Topic: Sale presentation
Tone: Witty/Sharp
Extensive research needed: no
Extra notes: We are currently half way though making a presentation using keynote. We are looking to improve the copy to make it flow and be concise. The layout of the presentation has an element of humor, but the message has to be clear.
The presentation needs to go through the sales process from introduction through to closure. The presentation will act as que cards for the while the sales person goes through their pitch.

Thank you