Replace Last Word in WAV

I have a very short, 3-second WAV clip and I need the final spoken word swapped out for “Jessie.” Everything else in the file must stay exactly as is—tone, timing, background noise, and overall length.

Please return a clean, seamless edit in the same WAV format, matching the original sample rate and bitrate so I can drop it straight back into my project. Let me know how soon you can turn it around and what tools you plan to use so I can keep track of versioning on my end.