A non-responsive guest IS a reason for a penalty-free cancellation. Just call Air about it - they might try the guest one more time, but will then cancel the stay.
Some examples of when a host can cancel penalty-free include:
- The guest has several unfavorable reviews that concern the host
- The guest hasn’t responded to questions the host needs to know about their trip
- The guest makes it clear they’ll likely break one of the host’s house rules, like bringing a pet or smoking
They only let you cancel for “uncomfortable” reasons 3x/year, so save those for “I just have a bad feeling about this…”