Academic Writing

I have audio interviews in English for my thesis . I need to transcribe these audio into written form not even single word should be missing while writing. i want someone who have a great command over Listening and writing English or English should be his/her 1st language. I have 7 ,8 audios approximate time is 30-45 minutes. Any one who is willing to do this task please let me know about your bids and time taken to finish this task.