Hello, I am Jeffrey Parker.
Hello, how can I assist you at this moment?
Please, reserve me a flight ticket from PHL to SFO.
Sure, I will help you with this. Can you please provide your journey dates?
I am travelling from Aug 17 to Aug 19.
Do you need any halt in this journey?
Yes, I need  a halt in between my journey.
Which class do you prefer to travel for this trip?
I prefer economy class.
Wait a moment please.
Sure.
Jeffrey Parker, we regret to inform you that there are no flight services available on this route on your provided dates.
No problem, thank you for the information.
Thank you for opting us.