How to use Query Result From One Query in Another?
I would suggest storing the Ticket_ID's from your first query in a variable, you would use the Concat() function to create a comma separated list and then pass the variable in your sql using syntax something like this...
Concat(Chr(39) & Ticket_ID & Chr(39),', ') as Tickets;
Select Ticket_ID from...;
Let YourVar = Peek('Tickets',0,'Tickets');
Select * from Blah where Ticket_ID In ($(YourVar));