You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to book a flight ticket to IAD from OAK, can you please help me out?

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

USER: Sure, my planned travelling dates are Nov 29 and Dec 01.

ASSISTANT: Would you like to travel in a direct flight or a connecting flight?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: Yes, I prefer business class.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Brian Thompson.

ASSISTANT: We found American airline with price 600 and economy class and flight number is 1003 with arrival time is 6 AM and departure time is 11 AM.Shall I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked with flight 1003.

USER: Thank you for the help.

ASSISTANT: You are welcome.