Using company funds for hotel and expenses

I have to visit KSA to conduct a workshop with customers and vendors. Customers and vendors requested to do workshops on weekends so we can save time and go to Umrah within this time line and requested to pay the same amount that will be saved by reducing the time of workshops and hotel accommodations so that we can manage our expenses for Umrah.

I requested the company for this favor, and the company approved it for the vendor and customer, but when asked for myself, they replied, "we will book a hotel for as per your request and grade limit." When I checked with the relevant person, he told me your limit is 300 AED for a single night. You can book by yourself by booking online and share the booking receipt, and we will pay you. I have calculated that amount and now want to go with another hotel that has a lower rate, some 150 AED, and the rest amount will be used for travel and food during Umrah. Maybe some money can be saved by this.

Can you please guide me? Is this halal or haram?