Conflict resolution - how would you solve our problem?

Conflict resolution - how would you solve our problem?

This is and hypothetical scenario my colleague Jessica and I have elaborated for a team building event next week.

Scenario - my parking spot (reserved in my name) is the closest to the building entrance. Jessica's assigned spot is a bit farther, and so far it has not been a problem.

Problem - Jessica has sprained her ankle and has difficulties walking and driving, so she wants to use my parking spot this week. She didn't ask, she expects me to give it to her and given her tone, I don't want to.

Additional factors - this week Jessica has a vacation day scheduled on Wednesday and I will work from home on Friday. When I am not in office, I am OK with her using my spot.

We want to reach a solution and a satisfactory compromise, but when I'm in office, I am not giving up my spot. What do you suggest we do?

Updates
5 mo
Forgot a detail that can help - we work the same hours, from 9AM to 14PM.
Conflict resolution - how would you solve our problem?
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