diff --git a/flight-service/index.md b/flight-service/index.md
index 42cd959..79191d9 100644
--- a/flight-service/index.md
+++ b/flight-service/index.md
@@ -34,6 +34,7 @@ Accept: application/json
 
 ```http title="Request"
 GET /api/users/{id} HTTP/1.1
+Accept: application/json
 ```
 
 ```json title="Response Body Example"
@@ -51,6 +52,7 @@ GET /api/users/{id} HTTP/1.1
 
 ```http title="Request"
 POST /api/airplane/{id} HTTP/1.1
+Accept: application/json
 ```
 
 ```json title="Response Body Example"
@@ -68,6 +70,7 @@ POST /api/airplane/{id} HTTP/1.1
 
 ```http title="Request"
 GET /api/airplane HTTP/1.1
+Accept: application/json
 ```
 
 <details>
@@ -97,6 +100,7 @@ GET /api/airplane HTTP/1.1
 
 ```http
 GET /api/airport/{id} HTTP/1.1
+Accept: application/json
 ```
 
 ```json title="Response Body Example"
@@ -114,6 +118,7 @@ GET /api/airport/{id} HTTP/1.1
 
 ```http title="Request"
 GET /api/airport HTTP/1.1
+Accept: application/json
 ```
 
 <details>
@@ -143,6 +148,7 @@ GET /api/airport HTTP/1.1
 
 ```http title="Request"
 POST /api/flight HTTP/1.1
+Accept: application/json
 ```
 
 ```json title="Request Body Example"
@@ -186,6 +192,7 @@ POST /api/flight HTTP/1.1
 
 ```http title="Request"
 GET /api/flight/{id} HTTP/1.1
+Accept: application/json
 ```
 
 ```json title="Response Body Example"