Hi, I'm Susan.
Hello, how can I help?
I need to find  a flight from Chicago to San Francisco for Monday.
What day of the month is Monday?
Sorry, the 11th. I'm going to a medical convention. I hope I have time for some sightseeing.
Unfortunately there are no flights that match your search. Would you like to change any of your criteria?
How about the 9th or 10th. I can be a little flexible on the dates.
Right, I found an Economy flight with Virgin for 199 credits
 that takes 8 hours to get to San Francisco.
I would prefer business or first class if possible, please.
Right, I found a Business flight with Delta for 286 credits
 that takes 3 hours to get to San Francisco.
I also need the weather forecast for San Francisco on Saturday and Sunday.
It will be Raining all day on Saturday in San Francisco, with temperatures of around 24 degrees celsius. It will be Partly Cloudy all day on Sunday in San Francisco, with temperatures of around 2 degrees celsius.
Thanks. Can you book me a seat on that flight please?
I'm sorry, but your reservation request was unsuccessful.
Could you try again please.
I'm sorry, but your reservation request was unsuccessful.
Can you book me a seat on flight 295 please? I just got am email and my sister will be on that flight.
Sorry, but the flight with id '295' is not available any more.
I need to find another flight from Chicago to San Francisco for the 9th.
Unfortunately there are no flights that match your search. Would you like to change any of your criteria?
How about the 10th or the 8th.
Sorry, but the flight with id '960' is not available any more.
How about Chicago to LA on the 11th?
Right, your flight is now reserved!
Thanks. Have a good day.
Thank you and goodbye.