Where is the announcement probably being made?

Attention all travelers bound for Glasgow. There has been a major technical problem at the central station in London. We regret to inform passengers that all scheduled trips this morning will be delayed by 30 minutes. The train to Glasgow will be departing at 9:30 A.M. instead of 9:00 A.M. We remind all passengers to secure their belongings. While waiting, you may visit our new coffee shop near the ticket office. You can also stay in the passenger lounge, but please be sure to return to platform C at 9:20 A.M. We are sorry about the delay and thank you for your patience.