When did you leave for Beijing last Sunday?
Oh, I planned to take the 8:50 train. But the manager phoned me at about 8:15 and asked me to deal with something urgent. When I finished it, it was already 9:50.
So you had to take the 10:30 train. Right?
Yes. But when I hurried to the railway station, I was told the train would be delayed for fifteen minutes.