Hi.
user
Hello. How could I aid you?
assistant
Can you help me to book a flight from PHL to SFO?
user
Sure, may I know your travelling dates?
assistant
My travel dates are Nov 24 and 26.
user
Can you please share me your name?
assistant
Sandra Roberts here.
user
Do you have any other requirements?
assistant
I prefer an economy class.
user
Unfortunately there is no flight found with your given information.
assistant
Ok, thank you.
user
Thank you for approaching us.
assistant