Hello.
user
Hello. How may I help you?
assistant
I am Christopher Walker. I want to book a ticket from OAK to JFK to attend seminar, can you help me in booking?
user
Sure, could you please provide your travelling dates to search for the flight?
assistant
I am departing on Sep 01 and return on Sep 03.
user
Do you prefer any halt in between journey?
assistant
I need a direct flight.
user
Sorry to say, no flight is available for you.
assistant
That's ok, thank you for your information.
user
Welcome.
assistant