am looking for a train it should arrive by 18:30 and should go to peterborough
user
tr9859 cost 16.50 pounds . is there anything else ?
assistant
i need to leave on sunday from cambridge .
user
there are 2 trains that arrive in peterborough by 18:30 . what time are you planning to leave cambridge ?
assistant
i just need to arrive by 18:30 in peterborough the departure time does not matter .
user
tr8293 arrives at 17:56 and tr2913 arrives at 18:24 . would you like me to book tickets on 1 of them ?
assistant
i need tickets for 8 people . can you book and give me the reference number ?