What should the message help the guest do?
Decide the purpose before writing. Directions, arrival-time coordination and answering a specific request may need different information. Combining every policy, offer and local recommendation makes the essential details harder to find.
Start with the stay context so the guest recognises the message. Then give the information they need next. Keep a long policy on a suitable page and link to it with a descriptive label. Do not conceal a material booking condition behind vague wording.
For an enquiry that has not become a confirmed booking, use the booking enquiry guide. Pre-arrival wording should not accidentally tell an undecided enquirer that a reservation exists.