[The only reason Kairi would open the journal and respond to Aerith is because she knows the Aerith from her world could help. If this girl was like the Aerith she knows...]

We have someone, but it's still really bad. ...could you meet us out here, Aerith? We're at the dome's clinic. We could use all the help we could get. She's going to need a lot of healing and a lot of recovery time.