Please see below latest update of booking slot for LNG vessels:
January 2018: NO Slot available
February 2018: NO Slot available
March 2018: NO Slot available
Between April 01st and April 15th: NO slot available
April 16th, 2018: 2 space available. Both Southbound. 1 of this space for LNG or any other type of NEO Vessels
Between April 17th and April 30 2018: no space available.
Alternatively to look/find booking slots available on daily basis, you can access below link (this web page is updated by Panama Canal Authorities every 30-60 minutes AGW):