-- Arthur Khazbulatov (BBI1803)
group: HotelHomework

RoomType = {
	tid:number, rtName:string, nightPrice:number
	1, "Standard single", 15
	2, "Standard double", 20
	3, "Luxury double",   25
	4, "Family4",         35
}

Room = {
	tid:number, rid:number, Number:number, s:number, seaView:boolean

}

Guest = {
	gid:number, gName:string, email:string, country:string

}

Stay = {
	sid:number, gid:number, rid:number, start:date, nights:number, isFinished:boolean

}