Domains: Flights_13, Buses_23

user: four in the group and I want southwest airlines and am leaving from sf.

system: where are you headed?

user: Las vegas on the 11th

system: southwest airlines leaves at 12:50 pm and has 1 stop for $165

user: I want economy tickets

system: will you leave march 11th?

user: I am going on 8th of march and want flexible tickets

system: 7 buses found leaving at 7:20 am and the price is $66 and it is flexible

user: that is good

system: wanna get tickets on it?

user: yes I want to

system: confirm bus leaving san francisco to las vegas on march 8th at 7:20 am for 4 people and it is flexible

user: yes, what station?

system: union plaza station

user: thank you a lot

system: anything else for you?

user: No I am well

system: Have a nice day