Domains: Flights_15, Buses_15

user: I need one-way flights for four. I am not sure if I would be going, so I would prefer refundable tickets.

system: When would you like to go?

user: later today. I would be leaving NY. Doesn't matter which airline.

system: Where would you like to go?

user: I am heading washington.

system: There are 2 suitable flights. Southwest airlines has an outbound flight that departs at 2:35 pm. It has 0 stops and the price is $85

user: Are there any other flights?

system: United airlines has an outbound flight that leaves at 1:35 pm. There are 0 stops and it costs $71

user: What time does the onward flight land?

system: It lands at 2:45 pm.

user: That would be great.

system: You would like tickets?

user: Yes. Book me seats on economy class.

system: You would like 4 economy tickets on a flight leaving on March 1st from New York to Washington on United Airlines?

user: Yes, that would be cool. What airport would I land in?

system: Dulles International Airport.

user: I will need a bus to get there on the 4th.

system: There is a bus leaving at 6 am. There price is $39 and there are 0 transfers.

user: That would be awesome. I am done for now.

system: Enjoy your day.