Query: user: Hi, could you get me three Delta Airlines one-way flight tickets from Vancouver, BC?
assistant: Where to and when do you plan to travel?
user: I will be travelling to Seattle on the 1st.
assistant: Would you like a Delta Airlines flight departing at 6:35 am with 1 layover costing $241?
user: Sounds great, but could you help me find train rides travelling there too?
assistant: Will you be travelling on March 1st too?
user: No, could you search for tickets departing on the 5th instead?
assistant: Would you like a train departing at 6:40 am costing $131?
user: Are there any alternatives?

Intent: Trains:FindTrains