diff --git a/chapter7/restaurant/Cargo.lock b/chapter7/restaurant/Cargo.lock
index ba86874..c9de552 100644
--- a/chapter7/restaurant/Cargo.lock
+++ b/chapter7/restaurant/Cargo.lock
@@ -2,6 +2,74 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "getrandom"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c85e1d9ab2eadba7e5040d4e09cbd6d072b76a557ad64e797c2cb9d4da21d7e4"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.144"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b00cc1c228a6782d0f076e7b232802e0c5689d41bb5df366f2a6b6621cfdfe1"
+
+[[package]]
+name = "ppv-lite86"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
+
+[[package]]
+name = "rand"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
+dependencies = [
+ "libc",
+ "rand_chacha",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+dependencies = [
+ "ppv-lite86",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+dependencies = [
+ "getrandom",
+]
+
 [[package]]
 name = "restaurant"
 version = "0.1.0"
+dependencies = [
+ "rand",
+]
+
+[[package]]
+name = "wasi"
+version = "0.11.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
diff --git a/chapter7/restaurant/Cargo.toml b/chapter7/restaurant/Cargo.toml
index 678b365..075ab63 100644
--- a/chapter7/restaurant/Cargo.toml
+++ b/chapter7/restaurant/Cargo.toml
@@ -6,3 +6,4 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+rand = "0.8.5"
diff --git a/chapter7/restaurant/src/front_of_house.rs b/chapter7/restaurant/src/front_of_house.rs
new file mode 100644
index 0000000..4873487
--- /dev/null
+++ b/chapter7/restaurant/src/front_of_house.rs
@@ -0,0 +1,4 @@
+pub mod hosting;
+
+pub mod serving 
+
diff --git a/chapter7/restaurant/src/front_of_house/hosting.rs b/chapter7/restaurant/src/front_of_house/hosting.rs
new file mode 100644
index 0000000..2ba7b55
--- /dev/null
+++ b/chapter7/restaurant/src/front_of_house/hosting.rs
@@ -0,0 +1,2 @@
+pub fn add_to_waitlist() {}
+pub fn seat_at_table() {}
diff --git a/chapter7/restaurant/src/front_of_house/serving.rs b/chapter7/restaurant/src/front_of_house/serving.rs
new file mode 100644
index 0000000..6f48210
--- /dev/null
+++ b/chapter7/restaurant/src/front_of_house/serving.rs
@@ -0,0 +1,3 @@
+    pub fn take_order() {}
+    pub fn serve_order() {}
+    pub fn take_payent() {}
diff --git a/chapter7/restaurant/src/lib.rs b/chapter7/restaurant/src/lib.rs
index cbebbff..4e06d81 100644
--- a/chapter7/restaurant/src/lib.rs
+++ b/chapter7/restaurant/src/lib.rs
@@ -1,14 +1,7 @@
-pub mod front_of_house {
-    pub mod hosting {
-        pub fn add_to_waitlist() {}
-        pub fn seat_at_table() {}
-    }
-    pub mod serving {
-        pub fn take_order() {}
-        pub fn serve_order() {}
-        pub fn take_payent() {}
-    }
-}
+mod front_of_house;
+
+pub use crate::front_of_house::hosting;
+
 fn deliver_order() {}
 
 mod back_of_house {
@@ -37,12 +30,9 @@ mod back_of_house {
 }
 
 
-pub fn eat_at_restaurant() {
-    let mut meal = back_of_house::Breakfast::summer("rye");
-    meal.toast = String::from("Wheat");
-    println!("I'd like {} toast please", meal.toast);
-
-    let _order1 = back_of_house::Appetizer::Soup;
-    let _order2 = back_of_house::Appetizer::Salad;
-    ;
+mod customer {
+    use crate::front_of_house::hosting;
+    pub fn eat_at_restaurant() {
+        hosting::add_to_waitlist();
+    }
 }