can you help me book a train on sunday ?
user
where is the destination ?
assistant
i want to go to ely .
user
there are a number of trains leaving cambridge for ely on sundays . do you have a departure time in mind ?
assistant
i need it to leave after 08:15 please .
user
can i book for you ?
assistant
yes please book just 1 ticket for me .
user
tr1159 leaves at 9:50 and the fee of 3.52 pounds is payable at the station . is there anything else i can assist you with ?
assistant
yes , what is the reference number for the reservation ?