Email template on web page?

My client would like to be able to go to a web page and from there send a standard email (“Thank you for your inquiry …”) that would contain some variables (“yes, that product is available” or “no, the product is not available”). Is this possible? Thanks!

Yes that’s possible, but wouldn’t it be easier if the client just created several .txt files / one .txt file with several sections containing the default answers so s/he could just copy/paste those into is his/her e-mail client instead of having to use a website every time?
Or, if the client uses gmail, use canned responses?