booking office

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A ticket office.

from The Century Dictionary.

• noun In Great Britain, an office where applications, etc., are received and entered in a book; specifically, the office in connection with a railway, theater, etc., where tickets are sold, or applications for them registered.

from the GNU version of the Collaborative International Dictionary of English.

• An office where passengers, baggage, etc., are registered for conveyance, as by railway or steamship.
• engraving An office where passage tickets are sold.