[example] [user] i would like to find a train. [system] where are you departing from and what is your destination? [user] i'm leaving washington to chicago on march 6th. [system] there are 5 trains. there is one leaving at 9:40 am for $109. [user] i would like to purchase one ticket. flexible ticket, and add travel insurance. [slots] from=washington to=chicago trip_protection=b of possible values a) false b) true journey_start_time=9:40 am date_of_journey=march 6th class=c of possible values a) business b) value c) flexible number_of_adults=b of possible values a) 5 b) 1 c) 2 d) 3 e) 4 [context] [user] i am planning for a short trip and i want to book a train tickets. can you find me 1 economy premium ticket from sd?
State: [state] from=sd to=none trip_protection=none journey_start_time=none date_of_journey=none class=c number_of_adults=b

[example] [user] i would like to find a train. [system] where are you departing from and what is your destination? [user] i'm leaving washington to chicago on march 6th. [system] there are 5 trains. there is one leaving at 9:40 am for $109. [user] i would like to purchase one ticket. flexible ticket, and add travel insurance. [slots] class=a of possible values a) flexible b) value c) business from=washington date_of_journey=march 6th to=chicago journey_start_time=9:40 am number_of_adults=e of possible values a) 5 b) 3 c) 2 d) 4 e) 1 trip_protection=a of possible values a) true b) false [context] [user] i am planning for a short trip and i want to book a train tickets. can you find me 1 economy premium ticket from sd? [system] yes, of-course. to which city, you want me to book the train on which day? [user] i need the tickets for next wednesday to san francisco.
State: [state] class=a from=sd date_of_journey=next wednesday to=san francisco journey_start_time=none number_of_adults=e trip_protection=none

[example] [user] i would like to find a train. [system] where are you departing from and what is your destination? [user] i'm leaving washington to chicago on march 6th. [system] there are 5 trains. there is one leaving at 9:40 am for $109. [user] i would like to purchase one ticket. flexible ticket, and add travel insurance. [slots] journey_start_time=9:40 am from=washington number_of_adults=d of possible values a) 4 b) 3 c) 5 d) 1 e) 2 to=chicago trip_protection=b of possible values a) false b) true date_of_journey=march 6th class=b of possible values a) value b) flexible c) business [context] [user] i am planning for a short trip and i want to book a train tickets. can you find me 1 economy premium ticket from sd? [system] yes, of-course. to which city, you want me to book the train on which day? [user] i need the tickets for next wednesday to san francisco. [system] how about a train which will be going to depart at 6:40 am for which the ticket cost will be $103 in total? [user] that is okay. thanks and that's all.
State: [state] journey_start_time=6:40 am from=sd number_of_adults=d to=san francisco trip_protection=none date_of_journey=next wednesday class=b