<prompt> Translate the following text to SwahiliThe other field office, which reported saving about 32,000 over 6 years, also noted that multiple changes in contract carriers have made it more difficult to accumulate and effectively use frequent flyer miles.  <response>: Ofisi nyingine ya eneo, ambayo iliripoti kuokoa karibu 32,000 zaidi ya miaka sita, pia ilibainisha kuwa mabadiliko mengi katika waendeshaji wa mkataba yamefanya iwe vigumu zaidi kukusanya na kutumia kwa ufanisi maili ya mara kwa mara. 