(This story happened to a workmate of my auntie's in Liverpool's James Street railway station about three years ago.)
It was Valentine's Night, and the young husband had decided to take his wife out for a meal to Liverpool. After having had a pleasant evening, the pair went to Liverpool's James Street Station to get the last train home.
As they sat in the station chatting to each other, the husband noticed that there was a very smartly-dressed young lady, in a 1940's style black suit, sitting on the same bench as them. From the neatness of her attire, the woman looked as if she worked in an office. However, the man became puzzled when he noticed that she was staring fixedly straight ahead, and did not move at all.
Just then, the train came in, and the strange lady got up first and boarded the train ahead of the couple, who decided to enter the same compartment. As they stepped inside, the husband noticed that the compartment was empty, and there was no other way that the woman could have exited the compartment, except to pass by the couple. Frowning, the man asked his wife if she had seen the lady who had sat by them on the bench step into the compartment. Returning his frown, the wife shook her head and asked, "What woman?"
The husband replied: "You know, the lady who was sitting by us."
Again, looking puzzled, the woman shook her head and denied, again, that she had seen any woman on the bench.
Being a very level-headed person, the husband came to the conclusion that even though he did not believe in ghosts, there had been something very strange indeed about the lady's whole aspect. Maybe, he surmised, with it being Valentine's Day, and with her 1940's style attire, the woman could have been a spirit of a young lover going to meet her fiance, and perhaps someting tragic had happened in that railway station once she had boarded the train.
James Street station is a very old station, with a lot of history. During the war, for example, people used to go down in its tunnels to shelter from the Nazi bombings.