Hello.
user
Hello. How may I assist you today?
assistant
I'm planning to meet my college professor, cam you book a ticket from DFW to PHL?
user
 Sure, may I know your travelling dates?
assistant
Sure, my planned departure and return travel dates are 19th and 21st of July.
user
On which name shall I reserve flight ticket?
assistant
Please book the ticket with the name Emma Turner.
user
Do you need any specifications?
assistant
Yes, I'm looking for single connected flight.
user
Sorry, there are no flight tickets available on your journey dates.
assistant
Oh! That's ok, thank you.
user
Thank you for reaching our service.
assistant