Misappropriation of funds

If the payment is required to be done by the Management than  discussion is required otherwise ependiture will not be reimbersed.....

First of all the transaction in question should be put up to the management for ratification.  Once ratified, the transaction will be regular.  In case not ratified, then the company should pay to the travel company for the lapsed period (since one of his employee entered into the agreement with travel company) and discontinue with the agreement with immediate effect.  The company may be taking disciplinary action against the erring employee.