Write this schema as SQL showing the forge keys?

Feedback

$\backslash$table$[[$feedback$-$id$,$rating,comment,reservation$\_$id$]]$

Guests

guest$-$id

$444$

phone num

address

email

name

Reservations

$\backslash$table$[[$reservation$-$id$,$check$-$in$-$date,Check$-$out$-$date,guest$-$id$,$Bill$-$id$]]$

$$

Invoice

Rooms

Payment$\_$method

amount

date

guest$-$id

$$