Waited for last hotel bus which scheduled before 1pm from Conventional center to hotel from 12:40 to 1:00 pm. No bus showed up, I called Front desk, they told me be patient.  I waited and called them again around 1:30pm, they hang up my phone after I explained the purpose of the phone call. I called them third time around 1:35pm, no response.  Hope they will improve quality of their service.