For customers currently stranded abroad, one agency is paying out of its own pocket to extend hotel stays for them. SINGAPORE: When news broke of airspace closures across the Middle East after the United States and Israel launched strikes on Iran over the weekend, travel agencies in Singapore scrambled to field enquiries from customers worried about their upcoming transits or trips.  EU Holidays, for example, had been prepared to send about 750 Singaporeans in 30 tour groups on holiday to