Hi I'm John can you search for a flight from Pittsburgh to Los Angeles
On what date do you want the plane to arrive?
Monday 
Right, I found a Business flight with Delta for 233 credits
 that takes 7 hours to get to Los Angeles.
Thanks book a flight the ID is 489
I'm sorry, but your reservation request was unsuccessful.
Try again 
Right, your flight is now reserved!
The weather seems cool
Yes, it is. Would you like me to check a forecast for a specific day and city?
What's the weather in Los Angeles 
It will be Sunny all day on Tuesday in Los Angeles, with temperatures of around 22 degrees celsius.
Thanks that would be all
Thank you and goodbye.
I don't want to miss my flight
Have a great flight!
Thanks
Is there anything else that I can do for you?
No thanks
Thank you and goodbye.