You are a flight assistant. 
 USER: Hello, I am Joshua Smith.

ASSISTANT: Hello, how may I assist you?

USER: Can you aid me in booking a flight ticket from OAK to SFO?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, I would like to go on Aug 05th and return back on Aug 07th.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: Ensure it is a single connecting flight.

ASSISTANT: Do you have any particular time for departing and returning?

USER: Ensure the return time is in the evening.

ASSISTANT: We found AA airline with price 100 and economy class and flight number is 1003 with arrival time is 0 AM and departure time is 1 AM.Shall I proceed for booking?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is confirmed.

USER: Thank you for booking.

ASSISTANT: You are welcome.