Hello. My name is Kenneth Thomas.
Hello, what help can I do for you today?
 I am planning to travel from SFO to PHL for a business meeting, can you please help me with booking a flight ticket?
Sure, I can help you with that. May I know your travelling dates?
My preferable dates are from 01/04 to 01/06.
Sorry for inconvenience, there is no flight available with us which is travelling  to your destination on your provided dates.
That's ok.
Do you have any other preferable dates to travel?
No, thank you for your time.
It's my pleasure.