You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me to book a flight ticket from IAD to HOU?

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

USER: I planned my trip on the dates Nov 24 and Nov 26.

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

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No, class preference.

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

USER: No, I am happy with any time.

ASSISTANT: May I know your good name please?

USER: Myself George Lee.

ASSISTANT: We found Hawaiian airline with economy class and flight number is 1021 with arrival time is 5:00 hours and departure time is 12:00 hours.Shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: You are welcome.