Query: user: I want to find one-way flights.
assistant: What is your destination and place of departure?
user: I will be leaving from Portland, OR to Seattle.
assistant: What is your date of departure?
user: My date of departure is this Sunday.
assistant: I found an American Airlines which departs at 6 am with 0 stop and the ticket is priced at $89.
user: Can you check whether the ticket is refundable and the destination of the flight?
assistant: The flight arrives at Seattle-Tacoma International Airport and the ticket is non refundable.
user: can you look for two tickets in any other available flight?
assistant: I found Delta Airlines which leaves at 9:35 am with 0 stop and the price of the ticket is $70.
user: Okay. That sounds good to me.
assistant: Would you like me to buy the tickets for you?
user: No.Don't book the tickets now.
assistant: Is there anything else I can help you with?
user: Can you find me a bus going there on the 13th?
assistant: There are 8 buses suitable to your choices. How about economy ticket in a bus which leaves at 8:40 am and the price of the ticket is $31.
user: Okay. That sounds good to me.
assistant: Would you like me to buy the tickets for the bus?
user: Yes, Please book tickets for the bus.

Intent: Buses:BuyBusTicket