"reservations can be made for the week after next."
- "It is possible to book for the week after next."
"it is possible to ~" 「〜可能です」
"to book" 「予約する」"make a booking" も言えます。
"for the week after next" 「再来週から」"from the week after next" も言えます。
- "reservations can be made for the week after next."
"reservations" 「予約」
"reservations can be made" 「予約可能」"bookings can be made" も使えます。