Hi
Hello, how can I help?
I need to find a flight from Pittsburgh to LA
On what day do you want the plane to arrive?
the 15th
Right, I found an Economy flight with United for 459 credits
 that takes 3 hours to get to Los Angeles.
can you reserve that
Can I have your flight ID, please?
459
May I have your name, please?
John
Right, your flight is now reserved!
what will the weather there on Thursday?
It will be Snowing all day on Thursday in Los Angeles, with temperatures of around 12 degrees celsius.
What about Monday?
It will be Raining all day on Monday in Los Angeles, with temperatures of around 18 degrees celsius.
And Tuesday?
It will be Partly Cloudy all day on Tuesday in Los Angeles, with temperatures of around 15 degrees celsius.
Ok, thank you for all of your help. 
Is there anything else that I can do for you?
No, have a good night. Bye!
Thank you and goodbye.