shuttle from hotel to reception

I have a large amount of OOT guests and I wanted to get some price quotes on having some sort of transportation to shuttle them around from the hotel to reception. The guests are staying at the Huntington Hilton and the reception is at Crest Hollow. I guess I would need service at 6:30-7:15pm and then again at the end of the night starting at 12am-1. Thanks.

The wedding is July 10, 2004