We've been playing around with the SaaS idea that you described, because there are 80k+ travel agents in the US and they are underutilized! We eventually decided that performing the travel booking directly is important because that way we control the user experience, and our level of service is really the main value prop right now

We'd actually love to talk to your corporate travel provider and see if a partnership makes sense! ping me at kashish [at] carry [dot] travel? Otherwise we can get you started as an individual if your company allows it :)