I need a train to leave cambridge and arrive by 19:00
sure, what is your destination?
My destination is going to be stansted airport
What day will you be traveling? 
I should leave on Thursday.
Okay, the 17:40 train arriving at 18:08 will get you to the airport a little early.
Great. Can you book me 7 seats on that train?
Here is your reference number IVUVQUHJ and the total fee is 70.7 GBP. Is their anything else I can help you with?
I also want to eat Modern European in the south. 
restaurant alimentum is the place for you! Do you need a reservation?
Yes, please, make it for the same group (7 people), 10:00 on the same day.
Your booking has been made at Restaurant Alimentum for Thursday at 10:00.  Reference number is 1U8QWEDC.
Thanks for the help! Goodbye.
Have a great trip!  I hope you enjoy your trip!