You look quite confused! Do you? – I think YES! Not don’t be for, as KLM is given out the best services to get their passengers fully support in the query they are facing. Mainly, people usually do the booking, but due to unusual circumstances, you are forced to cancel the reservations. But, do you think, will be able to do so? I guess you face problems at any of the steps, thus you just need to search for How do I cancel and refund at KLM airlines? - and the answer for that is ready.