Dear Tomasz, The return trip is an open ticket and needs you to inform the driver when you get onboard the bus from Chengdu. In considering the language barrier if you do not speak Chinese, please tell your return date and preferred timing, then we write you the bilingual sentences beforehand. As it shows, buses also depart early in the morning. Please find sentences below that may help. 1. I have paid round trip tickets from Chengdu to Hailuogou. And I need the return trip on Oct 6th. 我购买了成都海螺沟往返车票。我需要10月6日返程票。 2. Afternoon departures on Oct 6th is better for me. If not available, morning departure is also acceptable. 6号下午的车最合适。如果没有，早上的车次也可以。 3. Please specific for me the exact departure time. 麻烦您告知我具体的开车时间___________。