I have to done a course with college where we are developing a travel app and we had to create a pitch for the app showing the things that it brings, this is great experience for what you are wanting,
Relevant Skills and Experience
I have had a great deal of experience for this type of work as i have created something very similar to this, the video was 3 minutes long but i edited it down from 5 minutes to 3 minute
Stay tuned, I'm still working on this proposal.