i need to book a train
user
i can help you with that . where are you headed ?
assistant
i am going to cambridge .
user
great , can you tell me where you will be departing from and which day you want to travel and at what time ?
assistant
i will be leaving from london liverpool street going to cambridge on sunday .
user
there is a train that leaves at 5:39 would you like me to book it for you ?
assistant
yes please , just for 1 person .
user
your booking was successful . your reference number is dwzmv9ks .
assistant
thanks ! now can you help me find an expensive gastropub restaurant in the centre please ?