twiml.message( 'Error: No session found. You can try joining the session from the dashboard at app.upchieve.org' twiml.message('A volunteer has already joined this session') } else if (session.endedAt) { twiml.message('The student has cancelled their help request') } else { twiml.message(sessionUrl) twiml.message( "Hmm, I don't understand. Please send questions to contact@upchieve.org"