i need a train from [train_departure] to [train_destination] .
there are many trains . what day and what time ?
i would like to leave on [train_day] after [train_leaveat] please .
train [train_trainid] fits what you are looking for . would you like me to book you passage ?
no , i just need to know the travel time of the train at the moment .
i will book it for you , is there anything else i can do for you ?