During my inspection the customer explained to me that she had no cold air coming out of the vents. I started by checking outside where I checked refrigerant pressures and I found absolutely no refrigerant in the system, it is dead flat, I explained to the customer that I could do a leak see but I would have to charge for it to find the leak because we will have to pressurize the system with nitrogen and r22 refrigerant for trace gas. She was not interested in finding the leak due to the age of it she told me she is ready to replace the system either way. I’ve been called the office and scheduled an MOD to come out on the job. I have wrote up no estimates to fix the system because I could not find where the leak was coming from. And the customer did not want a quote to repair the unit