For some reason some embassies continue to request hotel and airline reservation documents as part of visa application package when issuing the visa is not guaranteed.
I routinely book tickets and then cancel them after printing the reservation to use for visa application. Usually this isn't the airline or hotel I'll be staying in but rather one that has a liberal cancellation policy. I'm not going to risk booking nonrefundable tickets weeks or months ahead of time when I don't know I'll be issues a visa.
Is there a problem with this? Basically will there be any problem if the consular officer finds out? We can limit answers to European Union and Five Eyes countries.