DESPITE this time of year being a slow period in Cathay Pacific's advertising schedule, the airline has pulled the few slots booked in local and regional media because of the two-week-old flight attendants' strike which has disrupted some of its services. However, a spokesperson for the airline said that its major print and television campaigns, scheduled to begin in February and March, would go ahead ''one way or another''. In reaction to the strike, Cathay also began airing daily flight information on the six Commercial Radio and Metro Broadcast channels last week. Supplementary advertising, which also began a week ago in the form of full-page and double-page spreads in the South China Morning Post, Ming Pao, Sing Pao, Oriental Daily News and United Daily News is continuing to inform passengers of flight changes. Radio and newspaper updates are to continue. AN informal meeting between Hongkong's three radio stations, Commercial Radio, Metro Broadcast and Radio Television Hongkong, to decide whether to pursue syndicated research this year was positive, according to sources. It is understood that there was initial goodwill at the meeting and general agreement that a syndicated survey would make sense for Hongkong's radio industry. These are encouraging signs, but are by no means grounds for celebrating in the light of last year's complete failure by all parties to agree on anything concerning syndicated radio research. If there is an indication of compromise, the next stage would be to involve the advertising agency associations - the 4As and 2As - and the Television Entertainment Licensing Authority in a more formal meeting, perhaps next month. THE advertisement by BSB featured on last week's Media and Marketing page was an anti-pollution campaign entered in the 1992 United Nations Department of Public Information Awards.