Domains: Flights_13

user: I need to book a oneway flight in Economy.

system: Where and when are you leaving from? Where are you headed to?

user: I am leaving on March 4th from ATL to SF.

system: You have 4 options, one is flight from American Airlines, it leaves at 11:40 am and it makes 0 stops. The ticket is $176.

user: It's okay for me.

system: Have a nice day.