public async Task <NewTravel> AddTravel(NewTravel newTravel, string userMail)
{
newTravel.TravelId = userMail + newTravel.TravelDestination.City + newTravel.TravelDestination.Country + newTravel.ArrivalDate;
var dbTravel = TravelConverter.ToDbTravel(newTravel);
var response = await TravelRepository.AddTravelToUser(dbTravel, userMail);
return(TravelConverter.ToDomainTravel(response));
}