Edit Spoken Word Audio to Match Time Stamps

Hi there,
I have clear spoken-word audio that I need editing to match up with timings from a srt file.

i.e.
00:00:00 - 00:04:00 (Hello and welcome to this video)
00:04:00 - 00:08:00 (I'm John and today we are)

There are 2 sets of audio (.mp3) of which are around 30 mins each.

If you have any questions of the project please let me know.

Audio must be edited to a high standard as per the .srt file that will be sent on project acceptance.