welcome
in the age of the "Flexible Use of Airspace"!
Next time you miss a slot or complain for a bad route, think about poor dispatchers that shall dial everyday with RCA, CIA, CHMIA, CRAMs, RADS, NERS, NARs, NATS, CFMU, IFPS, SAM, SRM, FSM, DES, DLA, RFI, ACK, REJ, MAN and the best ever: AOWIR (Airline Operators What If Rerouted).
Once someone asked me "What a slot is?" I did answer: "I don't know, but can I have an improvement?".
Cheers