can you help me find a train to cambridge ?
user
i sure can ! what day and times are you looking for ?
assistant
i'll be coming in from norwich on friday . i'll need to leave after 11:30 , please .
user
how about tr9900 that leaves at 05:16 ?
assistant
that sounds just like what i needed . can you please make a booking for 5 people ?
user
yes , i would be more than happy to book tr9900 for 5 people . would you like a reference number ?
assistant
yes please give me the reference number
user
give me 1 moment to complete the booking .
assistant
did you complete the booking ? i need the reference number .