[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=b of possible values a) luxury b) regular c) pool number_of_seats=d of possible values a) 4 b) 3 c) 1 d) 2 [context] [user] i need to call a cab.
State: [state] destination=none ride_type=none number_of_seats=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] destination=659 merchant street number_of_seats=d of possible values a) 3 b) 1 c) 4 d) 2 ride_type=b of possible values a) luxury b) regular c) pool [context] [user] i need to call a cab. [system] certainly. how many people in your party? do you have a preferred ride type? [user] this is a reservation for 1 person. i would prefer a pool ride.
State: [state] destination=none number_of_seats=b ride_type=c

[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=d of possible values a) 3 b) 1 c) 4 d) 2 ride_type=a of possible values a) regular b) pool c) luxury destination=659 merchant street [context] [user] i need to call a cab. [system] certainly. how many people in your party? do you have a preferred ride type? [user] this is a reservation for 1 person. i would prefer a pool ride. [system] where are you going? [user] i need a ride to pacific science center. i'd prefer a luxury ride.
State: [state] number_of_seats=b ride_type=c destination=pacific science center

[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=a of possible values a) 2 b) 1 c) 4 d) 3 ride_type=b of possible values a) luxury b) regular c) pool destination=659 merchant street [context] [user] i need to call a cab. [system] certainly. how many people in your party? do you have a preferred ride type? [user] this is a reservation for 1 person. i would prefer a pool ride. [system] where are you going? [user] i need a ride to pacific science center. i'd prefer a luxury ride. [system] please confirm: you want a ride for 1 person to pacific science center. you prefer a luxury ride. [user] yes, that's it exactly.
State: [state] number_of_seats=b ride_type=a destination=pacific science center

[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=c of possible values a) luxury b) pool c) regular destination=659 merchant street number_of_seats=b of possible values a) 3 b) 2 c) 1 d) 4 [context] [user] i need to call a cab. [system] certainly. how many people in your party? do you have a preferred ride type? [user] this is a reservation for 1 person. i would prefer a pool ride. [system] where are you going? [user] i need a ride to pacific science center. i'd prefer a luxury ride. [system] please confirm: you want a ride for 1 person to pacific science center. you prefer a luxury ride. [user] yes, that's it exactly. [system] i have booked your cab, and they are on the way. [user] thanks for your help!
State: [state] ride_type=a destination=pacific science center number_of_seats=c

[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=b of possible values a) pool b) regular c) luxury destination=659 merchant street number_of_seats=c of possible values a) 4 b) 1 c) 2 d) 3 [context] [user] i need to call a cab. [system] certainly. how many people in your party? do you have a preferred ride type? [user] this is a reservation for 1 person. i would prefer a pool ride. [system] where are you going? [user] i need a ride to pacific science center. i'd prefer a luxury ride. [system] please confirm: you want a ride for 1 person to pacific science center. you prefer a luxury ride. [user] yes, that's it exactly. [system] i have booked your cab, and they are on the way. [user] thanks for your help! [system] is there anything else i can do for you today? [user] no, that's it. thanks.
State: [state] ride_type=c destination=pacific science center number_of_seats=b