Originally Posted by
SeenItAll
Not saying that this was the case here, but airport PA announcements may be coded messages for staff. Such as "Mr. Pickles and party please report to Gate 18" can be code for security personnel to get down to Gate 18 to deal with an unruly passenger. Or "Mr. Chutney and party please report to Gate 18" could be code for medical personnel to get to Gate 18. The goal of all this being to avoid alerting the miscreant or alarming other pax. Note that for coded messages to be effective, the name cue (Mr. Pickles or Mr. Chutney) must be both memorable and uncommon. Using Mr. Smith as a code call is not wise.
That could actually be a real person (or persons). If you're not familiar with UK politics, google or Wiki Eric Pickles.