I'm exactly in the same boat for a similar app in the travel space!

While unfortunately I don't have an answer for your question, I've found kind of interesting these threads:

* Wonderlog (ex-Travelchime): https://news.ycombinator.com/item?id=19383941

* Travel planning software: the most common bad startup idea: https://news.ycombinator.com/item?id=8419658

* Never consider a travel planning startup: https://news.ycombinator.com/item?id=10923143

I'd love to connect and learn more about what your doing! :)