apple script / software made for pre stored customers questions (email answer templates)

We get the same questions from customers each day for example wheres my order my order is missing item what my tracking number Usually we have the same reply, only name changes and sometimes other smaller things like tracking number, order costs or quantity in order. - We use safari and require a program to have our pre-stored auto reply answers - it should work by opening the email and selecting the pre populated template. - this template would then load in mail