Me: Excuse me?The argument went back and forth for a few times. She claimed the right to the side-lower berth because she, as the side-upper berth passenger, already owns half the berth and it is logical that the other half belongs to her if it is free. I argued that someone was supposed to come to side-lower berth but did not. So the berth belongs to those who occupied it first, which in this case happens to be me. The side upper person only owns half the berth till 10PM after which the side-lower passenger has the right to ask the side-upper passenger to retire to her berth.
Me: I want to sit here
29F: Is this your berth?
Me: I was sitting here before you requested me to sit somewhere else while you had dinner. I notice that you have had dinner.
29F: Why don’t you sit in your place?
Me: The middle berth guy is sleeping in my berth. I’ve been sitting here since the beginning.
29F: This is not your berth.
Me: This is not your berth either.
29F: Mine is side-upper
Bonus (if you have come this far):