U: I would like a train going to kings lynn.

S: The TR3112 will get you there by 05:58.  Will that work?

U: I don't want to leave until after 17:30.

S: Okay, there are many options for you to leave after 17:30 to Kings Lynn. Where are you departing from?

U: From Cambridge.

S: What day will you travel?

U: I'll be leaving on Tuesday

S: Great. There are several trains available. What time would you like to leave by?

U: I would like to leave after 17:30.

S: I can get you a ticket on TR9452 it will arrive by 18:58, how many tickets please?

U: I just need one ticket for myself. Can I get a reference number?

S: Booking was successful, the total fee is 9.8 GBP payable at the station. Reference number is : E9TVYR9Y. You are all set. Is there anything more I can help you with?

U: I am also looking for a hotel in the north with 4 stars and free parking.  I would like to book for 2 nights starting sunday.

S: Sounds like your in a hurry, lets find a place before booking.  Right now I see nothing that matches you search for hotel or guesthouse.

U: Oh no, that's not good! I really wanted them to book a hotel that matches my criteria. Oh well.

S: Ok don't worry i'm happy to help.   Can I try a different area or star rating?

U: How about a guesthouse instead?

S: There are no guest houses matching either.  Can we try a different star rating or area?

U: Yes that does sound good.

S: acorn guest house is in the north, it has a 4 star rating with free parking. Will this work for you?

U: book for the same number of people and 2 nights starting sunday

S: that was just for yourself, correct?

U: Yes 1 person please.

S: Ok you are booked at the Acorn Guesthouse for 2 days starting Sunday. Your reference number is WTCEQW. Will there be anything else?

U: Is the staff there friendly?
S: Yes, the staff at the Acorn Guest House welcomes its guests with large smiles and generally provide a wonderful service experience.