options: f : i did n't know 4 flights were cancelled yesterday . i 'll call an hour later . f : ok , then i 'll ask again about an hour later to hear more information . f : i 'll wait for two hours . please try your best . i worry about my mom 's flight . f : you need three hours ? fine . i expect more information abut the train .
article: m : the problem is that there have been some delays on flights from australia . f : could you be more specific ? what exactly do you mean by some delays ? m : i 'm sorry , madam . i 'll try to explain . there were 2 flights cancelled yesterday , including the flight your colleague booked for melbourne . at the moment i ca n't find out exactly what flight she got on . f : so if i understand you correctly , we have no way of finding out when she 'll get in . m : not exactly . we may not be able to tell you for an hour or so . we 're trying to check the passenger lists for all departing flights from australia . but that could take some time .