public static async Task <string> BookingAsync(this CoralClient client, CoralBookingParameters parameters)
 {
     return(await client.MakeRequest(
                CoralBookingClient.ENDPOINT, HttpMethod.Post,
                query : parameters.GetQueryString(), body : parameters.GetPostBody()
                ));
 }
 public static string Booking(this CoralClient client, CoralBookingParameters parameters)
 {
     return(client.MakeRequest(
                CoralBookingClient.ENDPOINT, HttpMethod.Post,
                query: parameters.GetQueryString(), body: parameters.GetPostBody()
                ).Result);
 }