I'm on a business trip, so second class is fine.
My company is sending me on a business trip next week. Can you help me check if there is any high-speed train running from Shenzhen to Nanjing?
user
When do you expect to leave? Let me know and I'll help you check.
assistant
I'll probably leave next Monday morning.
user
Which class do you prefer to travel in? Let me know and I'll tell you the train service information.
assistant
Inform Train train number G1604 from Shenzhenbei to Nanjingnan