reserved
US /rɪˈzɝːvd/
UK /rɪˈzɝːvd/

1.
slow to reveal emotion or opinions
:
•
He is a very quiet and reserved person.
•
She was reserved about her feelings.
2.
(of a place or facility) set aside for the use of a particular person or group
:
•
This table is reserved for Mr. Smith.
•
All seats are reserved.