How to edit Booking Form?
Third Party plugin Contact Form 7 is used for Booking Form in Hotel California theme.
Once you edit labels (Arrival Date, departure date, Adults etc.) according to your needs, please have a look at the following codes, as an example of Message Body:
From: [Name] Message Body: Arrival date: [ArrivalDate] Departure Date: [DepartureDate] Room: [Room] Adults: [Adults] Children: [Children] Name: [Name] Email: [Email]
For more info, please refer to the article: Setting up mail.