I'm planning my trip and I need a train going to broxbourne and arrive by 17:30. 
What is your departure site and what day are you travelling?
Im leaving Cambridge and it will be on Saturday
What time would you like to leave by?
I need to arrive by 17:30.
I have several trains available.  What time would you like to depart? 
I am not particular about departure time, please book 6 seats on the one arriving earliest and let me know the reference number.
Reference number is : MO8SEC17.  Train ID TR8674. Is there anything else? 

Yeah, I need to grab something to eat. I'm looking for a malay place in the centre of town.
Unfortunately there is no Malaysian food in the centre. Do you want a different type of food, or would you like me to search a different part of town?
How about some Indian food.  Is there any in the centre?
Sure, there are a number of options.  Did you have a certain price range in mind? 
It doesn't matter, can you recommend one and book me a table for 6.
I would suggest Curry Garden. For what day should I make your reservation?
Yes please. I need a table for 6 at 12:45 on Saturday.
Your reservation for 6 people at Curry Garden this Saturday at 12:45 was successful. The table will be reserved for 15 minutes. Your Reference number is : AEN16UHV.

Thank you. You have answered all my questions and I am all set now. Goodbye.
Thank you for contacting us and have a nice day.