This is something that I am not good at. Do you think it is important to acknowledge your booker/DJ/technicians before ending your show? How do you go about doing it?

Well... If you're calling a professional sound engineer a "dj" he won't take it as a compliment.

As far as acknowledging the "booker" that depends on your market. It may be 100% appropriate or 100% inapropriate.

In 50 years, on the road, I never had a dj. or a lighting techie. I was an itinerant mountebank, playing school assemblies, nation wide. Since I was booked by an assembly "bureau", I always acknowledged, in my closing lines, that the program was provided by the "National Assembly Service". (Often,the schools would book programs from more than one bureau.)

In the off season, I would book club dates, often independently. At this type of booking, I always thanked the program chairperson, just before I closed. --Someone in the group, may not have heard my name, when I was introduced. If that person thought that another group he was associated with, might like my act, he could ask the program chair person. When the chair person handed me the check, I gave him/her, a few business cards. The chairperson became my unpaid agent! This 'thank you' of the chairperson, gave him/her "credit" for arranging my appearance. (No chairperson EVER "complained" for being "recognized"!