Looking for a train that leaves on saturday
Yes, there are 404 trains. Would you like to tell me more to narrow your search?
Leaving Birmignham New Street, to Cambridge. 
No problem. Any preference on times?
I would need to leave after 08:30.
TR1958 leaves at 8:40 - would you like tickets on that train?
Not yet.. just needed the ID.  Also, looking for a place to dine in the center of town at a moderate price range.
I have many delicious options. How does Cotto sound? It's British food. 
That works for me. Book it for 3 people at 21:00 on the same day.
Unfortunately, there is no availability for that time. Did you have a different time in mind?
Oh, bummer. How about 20:00?
That worked! Your reference number is  WASWNFH0.
Thank you.  That is all.
You're welcome. Have an awesome day.