For your safety, we strongly recommend that you communicate using Roost's Messaging System so there will be a written record of your conversation. This will help Roost investigate any claims or reports made against your roommate. If you choose not to communicate on Roost's Messaging System make sure that you do so via email or text for the same reason.
Your roommate's cell phone number will be listed on your Roost reservation confirmation. At this point, you should contact each other directly to coordinate check-in at the hotel, or for any urgent matters on your trip.