Task-oriented dialogue about: train

I need a train that is leaving on sunday and leaving after 13:30.
I would be happy to help you. I have 221 trains departing Sunday, what day/time will you be departing and what is your destination?
I need to leave Cambridge after 13:30 to go to Stevenage.
I have trains leaving to there, what time would you like to arrive by?
That really shouldn't matter, I just need the booking for six.
Okay, you have six tickets reserved on TR4550. The total fee is 61.44 GBP payable at the station, and your reference number is P9P4UBVH .
Thanks, that's all I need. Have a nice day.
Okay great. glad we could be of help.