I did not have one as I only worked for them for a year. The pay I was receiving was good though, no complaints.
Smile and joke a bit with dispatch and as far as management:) listen well and be pleasant. Show management through discussions about your previous work that you CAN do the job and that you are easy to get along with.
Ensure you have documentation showing past experience and with other companies, ensure you have a recent abstract available, fast card and other certificates you have to show.