I can give you one quick suggestion: try and get into conferences, expos and meetups of hospitality industries. From what I gather, you need to expose your product to shot callers as quickly as possible.

As an added bonus, if any such conference is set up in a hotel, you can ask the hotel to set up a complimentary demo of your service. Now, you've exposed your product to a hotel as well as the attendees.

Don't be disheartened if you don't get results immediately. Success of a startup depends on networking. If you dont get any clients out of a conference, make sure you network and connect with them later.