I have the following table-

Hotel(hno, hname, city)
Room(hno, rno, type, charge)
Guest(gno, gname, gadd, phone)
Booking(gno, hno, rno, idate, payment)
Departure(gno, hno, rno, odate)

[hno-Hotel Number; hname-Hotel Name, rno-Room Number, gname-Guest Name; gno-Guest Number; gadd-Guest Address; idate-Booking Date;odate-Departure Date]

What are the primary keys and foreign keys ?
How will I fill data in these tables ?