5. WRITING . A LETTER OF COMPLAINT

Here you have a model of a letter of complaint to an airline.

Dear Sir/Madam,

I am writing to complain about a flight cancellation. 

On February 17 my return flight A882653 from Greece to Bogotá (via Madrid) was cancelled. The operator at the Aegean Airlines booking desk assured there was no possible re-routing on the same day.

I was not informed of the reason for the cancellation and therefore I had to spend an additional night in Madrid, and eventually take the flight back in the next morning. 

I enclose the hardcopy of the boarding cards.

I would appreciate it if you took action as soon as possible and compensate me for the damages. Otherwise, I will consider taking the appropriate legal actions.

I look forward to hearing from you

Yours sincerely,

(name and surname)

http://blog.metodoenglish.com/carta-de-reclamacion/