diff --git a/src/Form/Model/BookingCreateDto.php b/src/Form/Model/BookingCreateDto.php
index 727ff99..3291694 100644
--- a/src/Form/Model/BookingCreateDto.php
+++ b/src/Form/Model/BookingCreateDto.php
@@ -5,7 +5,7 @@ namespace App\Form\Model;
 use App\BusProNet\Model\Travel;
 use Symfony\Component\Validator\Constraints as Assert;
 
-class BookingCreateDto
+class BookingCreateDto implements BookingDtoInterface
 {
     public int $currentStep = 1;
 
@@ -21,7 +21,7 @@ class BookingCreateDto
     #[Assert\Valid]
     public array $participants = [];
 
-    public function __construct(public Travel $travelData, public int $hotelId)
+    public function __construct(public Travel $travel, public int $hotelId)
     {
     }
 
@@ -34,4 +34,24 @@ class BookingCreateDto
             return 0 < $roomSelection->quantity;
         });
     }
+
+    public function getParticipants(): array
+    {
+        return $this->participants;
+    }
+
+    public function getTravel(): Travel
+    {
+        return $this->travel;
+    }
+
+    public function hasParticipant(int $index): bool
+    {
+        return isset($this->participants[$index]);
+    }
+
+    public function getParticipant(int $index): ?ParticipantDto
+    {
+        return $this->participants[$index] ?? null;
+    }
 }
diff --git a/src/Form/Model/BookingDtoInterface.php b/src/Form/Model/BookingDtoInterface.php
new file mode 100644
index 0000000..821fc58
--- /dev/null
+++ b/src/Form/Model/BookingDtoInterface.php
@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Form\Model;
+
+use App\BusProNet\Model\Travel;
+
+/**
+ * Interface for unified access to booking data across create and edit workflows.
+ *
+ * This interface provides a consistent API for accessing common booking data
+ * regardless of whether the data comes from a creation workflow (BookingCreateDto)
+ * or an edit workflow (BookingEditDto). This enables code reuse and simplifies
+ * form field handlers and state management systems.
+ */
+interface BookingDtoInterface
+{
+    /**
+     * Gets all participants in the booking.
+     *
+     * @return array<int, ParticipantDto> Array of participant DTOs indexed by participant index
+     */
+    public function getParticipants(): array;
+
+    /**
+     * Gets the travel data for the booking.
+     *
+     * @return Travel The travel data containing services, hotels, and other booking options
+     */
+    public function getTravel(): Travel;
+
+    /**
+     * Checks if a participant exists at the given index.
+     *
+     * @param int $index The participant index to check
+     *
+     * @return bool True if a participant exists at the given index
+     */
+    public function hasParticipant(int $index): bool;
+
+    /**
+     * Gets a participant by index.
+     *
+     * @param int $index The participant index
+     *
+     * @return ParticipantDto|null The participant DTO or null if not found
+     */
+    public function getParticipant(int $index): ?ParticipantDto;
+}
\ No newline at end of file
diff --git a/src/Form/Model/BookingEditDto.php b/src/Form/Model/BookingEditDto.php
index 565e325..c9d2413 100644
--- a/src/Form/Model/BookingEditDto.php
+++ b/src/Form/Model/BookingEditDto.php
@@ -8,7 +8,7 @@ use App\BusProNet\Model\PersonalData;
 use App\BusProNet\Model\Travel;
 use Symfony\Component\Validator\Constraints as Assert;
 
-class BookingEditDto
+class BookingEditDto implements BookingDtoInterface
 {
     public ?Booking $booking = null;
     public ?Travel $travel = null;
@@ -63,4 +63,24 @@ class BookingEditDto
     {
         return 'O' === $this->booking->status;
     }
+
+    public function getParticipants(): array
+    {
+        return $this->participants;
+    }
+
+    public function getTravel(): Travel
+    {
+        return $this->travel;
+    }
+
+    public function hasParticipant(int $index): bool
+    {
+        return isset($this->participants[$index]);
+    }
+
+    public function getParticipant(int $index): ?ParticipantDto
+    {
+        return $this->participants[$index] ?? null;
+    }
 }