Just to clarify a few more points. If a trip says no availability it means that that the trip is either fully booked or that it is no longer available (i.e. we have had to cancel the trip due to operational reasons). Please note that only non-guaranteed departures have the potential to be cancelled. If your agent has advised that your trip is cancelled this should be correct. I have double checked your specific trip and it has indeed been cancelled. Your agent I am sure has advised of some other options but there are guaranteed departures on both the 12th of June and 10th of July.
If a trip said it was guaranteed and is now coming up on request it is usually because there are limited places available. I have also double checked your trip and it is indeed going ahead so not to worry!
Hope this clears things up but let us know if you have any other questions.