Yes I have experience and the job that gave it to me was a sales route! I slept with my child and she nursed almost all night while we slept, I also expressed milk while she was nursing while we were together so I did have some to feed her while we were apart. ( she was older @ the time than yours )
I also never scheduled any nursings, switched her frequently from breast to breast when we were together during the day and had no separations from her @ all except for work. I also went out of my way to think about her during the day and any time I went to the bathroom any where I expressed a little milk even though I could not save it since it kept the production up and kept me from getting engorged.
On the weekends I was with her the whole time and nursed her alot. I fed her just as I left in the am and then the moment we were together again, if I had ANY chance to come home even if it was only 2 times a month at lunch time I did even if it meant at times I sacrificed production. I also made sure her sitter did not feed her very close to my return so she would be good and hungry when I got there.
I ate well, drank lots of purified water, prayed, and kept on nursing, none of my kids ever had ANY formula and they are all healthy and doing well. This does not have to mean the end of your nursing relationship, this daughter nursed past 5!
You can do it! For help read Nursing mother working mother and attend Le Leche League evening meetings where there will be other working moms!
I will tell you it is easier now that I have a job where my nursing child is with me all day, but it can be done if you must be away!
Wishing you many blessings!