Task-oriented dialogue about: train

i Am looking for a train. The train should leave on Saturday and should depart from Cambridge.
Where are you traveling to?
I am going to kings lynn
Do you need to arrive or depart by a specific time?
it should arrive by 09:45.
TR4689 is your best bet. It will arrive at 8:58. Would you like me to book some tickets for you?
What time does it depart?
It departs at 8:11.
Thanks, that's all I needed today. Goodbye!
You're very welcome. Have a great day.