Help with starting from scratch code for Auto Responder

[khaneliman]

Some of my coworkers have a business they want me to help them set up a website for and also develop a code to auto respond to customers sending them a text message with one word messages to decide what service we should send them information on. I know the website will be easy as I enjoy programming websites, but haven't had too much knowledge of real programming other than a few classes in high school on C++. Was just wondering if anyone here would be able to try and help me see where I can get started on programming something that will be able to receive and respond to SMS messages.