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I am looking for a train to Cambridge on Saturday. certainly, do you know from where you will be departing, and at what time? I will depart at Birmingham New Street and should arrive by 11:30. Can you help me with this? Of course I can. There are 6 possibilities, at what time would you like to leave?
train
find_train
train-day train-destination
saturday
cambridge
train
find_train
train-arriveby train-day train-departure train-destination
11:30
saturday
birmingham new street
cambridge
train-arriveby
11:30
Train-Inform
day destination
saturday cambridge
Train-Inform Train-Inform
destination day
cambridge saturday
Train-Request
departure leaveat
? ?
Train-Inform
arriveby departure
11:30 birmingham new street
Train-Inform Train-Inform
departure arriveby
birmingham new street 11:30
Train-Inform Train-Request
choice
6
leaveat
?
Train-Inform
choice
6