Have not travelled for a while now, but the relatively tiny travel agency I used to use had a 24/7 support phone line. Did not personally have a need to use it,

Have not travelled for a while now, but the relatively tiny travel agency I used to use had a 24/7 support phone line. Did not personally have a need to use it, but a friend did, and the agency indeed handled the situation to his satisfaction. Moreover, booking international flights through that agency somehow always ended up cheaper than what I could find myself, even when accounting for their fees.