Hello, my name is Mark Jones.
user
Hello, how may I assist you today? Nice to meet you Mark Jones.
assistant
I want to visit downtown aquarium at Denver, can you book a flight ticket from PHL to DEN?
user
Sure. May I know your travel dates?
assistant
Yes, my travelling dates will be 01/31 and 02/02.
user
Please wait for a moment, I will come back with the best flight for you.
assistant
Ok.
user
Sorry Jones, we does not have flight for this route.
assistant
Ok fine, thank you.
user
It's my pleasure.
assistant