[example] [user] i would like book a cab ride to 659 merchant street. [system] is there a specific type of ride you would prefer? you can ride pool, luxury, or there are other options. [user] i would like to have a regular ride. [system] how many are in your group? [user] me and my wife, so two. [slots] number_of_seats=b of possible values a) 1 b) 2 c) 4 d) 3 destination=659 merchant street ride_type=b of possible values a) pool b) regular c) luxury [context] [user] i need a cab.
State: [state] number_of_seats=none destination=none ride_type=none

[example] [user] i would like book a cab ride to 659 merchant street. [system] is there a specific type of ride you would prefer? you can ride pool, luxury, or there are other options. [user] i would like to have a regular ride. [system] how many are in your group? [user] me and my wife, so two. [slots] ride_type=a of possible values a) regular b) pool c) luxury destination=659 merchant street number_of_seats=d of possible values a) 1 b) 4 c) 3 d) 2 [context] [user] i need a cab. [system] sure, where would you like to go? also, would you like a pool or a regular cab? [user] since i'm only one, i want a luxury ride to summerwood.
State: [state] ride_type=c destination=summerwood number_of_seats=a

[example] [user] i would like book a cab ride to 659 merchant street. [system] is there a specific type of ride you would prefer? you can ride pool, luxury, or there are other options. [user] i would like to have a regular ride. [system] how many are in your group? [user] me and my wife, so two. [slots] destination=659 merchant street ride_type=a of possible values a) regular b) luxury c) pool number_of_seats=b of possible values a) 4 b) 2 c) 3 d) 1 [context] [user] i need a cab. [system] sure, where would you like to go? also, would you like a pool or a regular cab? [user] since i'm only one, i want a luxury ride to summerwood. [system] great, please confirm your booking: 1 luxury ride to summerwood. [user] correct.
State: [state] destination=summerwood ride_type=b number_of_seats=d

[example] [user] i would like book a cab ride to 659 merchant street. [system] is there a specific type of ride you would prefer? you can ride pool, luxury, or there are other options. [user] i would like to have a regular ride. [system] how many are in your group? [user] me and my wife, so two. [slots] destination=659 merchant street ride_type=c of possible values a) luxury b) pool c) regular number_of_seats=b of possible values a) 1 b) 2 c) 4 d) 3 [context] [user] i need a cab. [system] sure, where would you like to go? also, would you like a pool or a regular cab? [user] since i'm only one, i want a luxury ride to summerwood. [system] great, please confirm your booking: 1 luxury ride to summerwood. [user] correct. [system] your ride is confirmed and on the way. [user] awesome, thanks for all your help.
State: [state] destination=summerwood ride_type=a number_of_seats=a