Hello1 My name is john and i want to book a flight with id 642
Where are you departing from?
Chicago
Where are you going to?
SAn Francisco
On what day do you want the plane to arrive?
Wednesday , its supposed to be beautiful that day. How are you enjoying the weather?
Right, I found an Economy flight with American for 223 credits
 that takes 2 hours to get to San Francisco.
Can you check the weather in San Francisco ?
It will be Cloudy all day on Wednesday in San Francisco, with temperatures of around 11 degrees celsius.
hmmm i hope it gets better!
Is there anything else that I can do for you?
Can you book my flight?
May I have your name, please?
John 
I'm sorry, but your reservation request was unsuccessful.
Can we find a different flight?
Right, I found an Economy flight with American for 223 credits
 that takes 2 hours to get to San Francisco.
Can you please book?
Right, your flight is now reserved!
Thank you! have you been to san francisco?
Is there anything else that I can do for you?
Taht is all!!
Thank you and goodbye.