The context of the following conversation is Cameron was Kai's assistant for years, and Cameron served Kai faithfully.:
Cameron says I'm so happy to have worked for you for the past 5 years..
The friend responds Me too, you have been the best assistant I've ever had..
Cameron responds Thank you, I'm so happy to hear that..
The friend responds You are always  such a big help to me..
Cameron responds I try my best.  I enjoy my job very much..
The friend responds I hope you will continue working for me for a long time..