[refs#ITEC-132] Fix(Book): Added delta price to avoid price discordancies between quote and book
Sellers at 2023-01-17:
- On Holiday Group - [OHG]
- Hotetec - [TEC]
- Perlatours (DOME) - [PERT]
- iTravex - [ITVX]
- Kurban Tours - [KRB]
- Gaviota Hoteles (Hotetec) - [GAVT]