I have used that type of service before but I would advice you to check the Kennel personally first. My old golden has sent to a kennel that they lock her up in a cage smaller than her size. I know that because of scratches on her fur at the knee. We never went to that kennel even if it don't need booking.
The other type of service is they send a person to your place, feed the dog, top up water, they the dog for a walk and you paid for the time that they spend there.
