shuttle...flushing to throgs neck and back

I am getting married on Oct 12 at the marina del rey in the bronx.
we will be at the sheraton in flushing...we need a bus or shuttle to transport the wedding party to the marina earlier in the day and then return later to bring guests from the hotel to marina for the 3:30 ceremony. the bus will have to take guests back to the hotel at the end of the wedding at 11 pm

I am looking for quotes
thank you