[example] [user] i need help finding a bus to lax. [system] where would you be departing from? [user] i will be leaving from vegas. [system] what day do you plan on leaving? [user] my departure date is the 3rd of this month. i need 3 tickets and prefer economy tickets. [system] i have a bus that leaves at 11:50 am that has economy tickets for $33 each. [user] that one sounds perfect. [slots] destination=lax departure_date=3rd of this month departure_time=11:50 am origin=vegas group_size=d of possible values a) 2 b) 4 c) 1 d) 3 e) 5 fare_type=b of possible values a) economy extra b) economy c) flexible [context] [user] find me an economy bus ticket.
State: [state] destination=none departure_date=none departure_time=none origin=none group_size=none fare_type=b

[example] [user] i need help finding a bus to lax. [system] where would you be departing from? [user] i will be leaving from vegas. [system] what day do you plan on leaving? [user] my departure date is the 3rd of this month. i need 3 tickets and prefer economy tickets. [system] i have a bus that leaves at 11:50 am that has economy tickets for $33 each. [user] that one sounds perfect. [slots] group_size=c of possible values a) 4 b) 5 c) 3 d) 1 e) 2 destination=lax departure_date=3rd of this month departure_time=11:50 am origin=vegas fare_type=a of possible values a) economy b) economy extra c) flexible [context] [user] find me an economy bus ticket. [system] when and where are you leaving? where are you going? [user] going to la on the 11th of march, leaving san francisco.
State: [state] group_size=none destination=la departure_date=11th of march departure_time=none origin=san francisco fare_type=a

[example] [user] i need help finding a bus to lax. [system] where would you be departing from? [user] i will be leaving from vegas. [system] what day do you plan on leaving? [user] my departure date is the 3rd of this month. i need 3 tickets and prefer economy tickets. [system] i have a bus that leaves at 11:50 am that has economy tickets for $33 each. [user] that one sounds perfect. [slots] group_size=c of possible values a) 4 b) 5 c) 3 d) 2 e) 1 departure_date=3rd of this month origin=vegas fare_type=c of possible values a) economy extra b) flexible c) economy destination=lax departure_time=11:50 am [context] [user] find me an economy bus ticket. [system] when and where are you leaving? where are you going? [user] going to la on the 11th of march, leaving san francisco. [system] an economy ticket costs $43 and leaves at 7 am. [user] that's good - thank you.
State: [state] group_size=none departure_date=11th of march origin=san francisco fare_type=c destination=la departure_time=7 am