A judge has reserved his decision in a long-running employment dispute between Air New Zealand and a former flight attendant.

Jennifer Kilpatrick was sacked after a disagreement with bosses about her behaviour on flight NZ19 from Rarotonga to Auckland in March 2012 and her subsequent sick leave.

Ms Kilpatrick took the dispute to the Employment Relations Authority, which ruled in 2013 that she was justifiably dismissed, and ordered her to pay $10,000 in costs to the national carrier.

However, she is fighting that decision in the Employment Court in Auckland. She also wants to be reinstated to her former position at the company.

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This morning, Judge Mark Perkins heard the last of her submissions.

Representing herself, Ms Kilpatrick again spoke of the effect on her "health, well-being, employment and financial status".

Following seven days of evidence, in a split hearing on the matter, Judge Perkins reserved his decision.