Dear Sir,
We thank you for your letter dated ___________.
Further to this, we would like to bring to your kind notice that due to strike, ________Airways has been lifting only ____ per cent of its total loading capacity during the last fortnight, resulting in considerable backlog. Your parcels have already been booked and the same will be loaded on Flight No. ______ leaving ________ on __________.
We shall arrange to send the documents on ___________ through our representative.
Thanking you
Yours faithfully