Ready to adapt.
A GENERAL ENQUIRY
"A customer asks: [paste]. My business: [what you do]. Relevant facts: [price, availability, delivery]. Write a reply under 120 words, plain and warm. Do not commit to any timescale I have not given you."
A PRICE ENQUIRY
"Customer asks the price of [product or service]. My price is [amount], and it includes [what]. Write a reply that gives the price, says what is included, and invites them to proceed."
AN AVAILABILITY ENQUIRY
"Customer asks whether [item] is available. It is [status]. Alternative: [what]. Write a short reply."
A DELIVERY ENQUIRY
"Customer asks about delivery to [area]. We deliver there in [time] for [cost]. Write a reply stating both clearly."
AN ENQUIRY YOU CANNOT FULFIL
"Customer wants [what]. We do not do that. We do [related thing]. Write a reply that is helpful, offers the alternative, and does not waste their time."
THE CONSTRAINT TO ALWAYS ADD
"Do not invent any fact I have not supplied."
WHAT TO ALWAYS CHECK
Prices, timescales and availability.