Task-oriented dialogue about: train

I am looking for a train.
Alright, where will you be leaving from, or where are you heading?
The train should go to cambridge and should depart from stansted airport.
Alright, I have many options for you depending on the day of the week or times you wish to travel. Do you have a preference?
leaves at 1900hrs, arrives on sunday and booked fir one person.get me the reference number too
Booking was successful, the total fee is 10.1 GBP payable at the station . Reference number is : 70MPLUW8 .
Thank you for your help.
Thank you goodbye