[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] origin=vegas departure_date=3rd of this month group_size=d of possible values a) 2 b) 4 c) 5 d) 3 e) 1 fare_type=c of possible values a) economy extra b) flexible c) economy destination=lax departure_time=11:50 am [context] [user] will you help me find a bus?
State: [state] origin=none departure_date=none group_size=none fare_type=none destination=none departure_time=none

[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] departure_time=11:50 am group_size=e of possible values a) 4 b) 2 c) 5 d) 1 e) 3 destination=lax departure_date=3rd of this month fare_type=a of possible values a) economy b) flexible c) economy extra origin=vegas [context] [user] will you help me find a bus? [system] when and where are you leaving from? where are you going? [user] i'm going to leave next tuesday with four people to washington. i'm leaving from new york city.
State: [state] departure_time=none group_size=a destination=washington departure_date=next tuesday fare_type=none origin=new york city

[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] fare_type=a of possible values a) economy b) flexible c) economy extra origin=vegas departure_date=3rd of this month group_size=b of possible values a) 2 b) 3 c) 1 d) 4 e) 5 departure_time=11:50 am destination=lax [context] [user] will you help me find a bus? [system] when and where are you leaving from? where are you going? [user] i'm going to leave next tuesday with four people to washington. i'm leaving from new york city. [system] the economy ticket for the bust is $39 and the bus leaves at 6 am. [user] that's sounds good. that's all i needed to know.
State: [state] fare_type=a origin=new york city departure_date=next tuesday group_size=d departure_time=6 am destination=washington