Many shops are experiencing a slower than expected spring in pockets around the country. The shops that are doing good are those that are proactive with sales and vehicle inspections. If you wait for the customer to come to you and tell you to service or repair their car....good luck.
You must view every car as opportunity and looking at the entire car.
Also, every car in your shop today will need future service and repairs. Make sure those cars come back to you. Book the next appointment and plan out their total car care.
I don't have all the answers, but sitting on your hands and wondering where the work is not a viable strategy.