i am planning your trip in cambridge . i need a train , the train should depart from birmingham new street and should leave on sunday
user
i can help you with that . do you have a time preference ?
assistant
yes i need to arrive by 14:30 .
user
i have train tr9644 arriving by 14:23 , is that good for you ?
assistant
yes could you please book it for me and get me a reference number ?
user
how many tickets do you need ?
assistant
i need 1 ticket please .