Imagine a story (please correct)

Guy went to his duty job as usual and Doris applied for a job at the Foreign Office. Her chances to get the job were rather good, but of course she was excited. In the evening when she and, and her friend, Guy had dinner, she told Guy him about what she had done during her job interview. Her new boss was very kind and he had taken her on. 

Regards,

Lorenz

Hello Lorenz! I tried to correct you writing, but was unsure about what you meant in the highlighted text. The phrase that is crossed out was not needed in your writing, so I changed some of your writing to reflect it. Everything else was fine. Nice Job! 

Imagine a story (please correct)

Guy went to his duty ? as usual and Doris aplied for a job at the Foreign Office. Her chances of getting the job were rather good, but of course she was excited nervous. In the evening, when she and Guy had dinner, she told Guy him about what she had done during her job interview. Her new boss was very kind and he had taken her on.

It could also say "...about how she had done at her job interview."

If by "duty" you mean his job, I'd probably say "job" or "went to work".