I need a train on Friday from the london liverpool street station. 
There are 10 trains leaving that station on Friday. What time would you like to travel?
The train should leave after 17:15 and should go to Cambridge.
There are 4 trains that leave after 17:15. The TR9886 leaves at 17:39 from london liverpool street. Would you like me to book you a seat?
What is the arrival time?
That train arrives at 19:07.
Okay I would like to book it. I'm also looking for a restaurant on the cheap side in centre. 
I found 15 restaurants, do you have a preference of food choice?
I really don't- it just needs to fit 8 people at 20:00 on Friday.
I'm unable to find an opening that fits your needs. Would you like to choose a different time or day?
How about for 19:00 that day? And can I have the reference number please?
Booking was successful for charlie chan's for Friday at 19:00. The table will be reserved for 15 minutes. The reference number is POUAEXHL. Do you need further help with anything?
Thank you that should be it, thank you for your help.
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