routes = {"YHZ-YYZ":"","LHR-YHZ":""};airports = {"YHZ":["44.881186","-63.508708","HALIFAX INTL"],"YYZ":["43.676661","-79.630645","TORONTO\/LESTER B. PEARSON INTL"],"LHR":["51.477500","-0.461389","LONDON HEATHROW"]};show = "PID_VAC047033";