You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket from IAD to DFW, can you please help me?

ASSISTANT: Sure, let me know your trip dates please?

USER: I planned my trip on the dates Oct 21 and Oct 23.

ASSISTANT: May I know your connection limit?

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

ASSISTANT: Do you need any other preference?

USER: Yes, I prefer normal cost airline for my journey.

ASSISTANT: Can I know your name please?

USER: Sure, myself David Miller.

ASSISTANT: Hawaiian Airlines is providing connecting flight with the ticket fare of 200 and depart time is 12:00 hours, arrival time is 10:00 hours. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed by flight number 1015 in economy class.

USER: Thank you for your help.

ASSISTANT: Thanks for choosing us.