You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how can I help you now?

USER: David King here. Can you please book a ticket from DFW to DEN?

ASSISTANT: Sure, we are ecstatic to help you. May I know on what dates would you like to travel?

USER: Sure, my planned departure and return travel dates are 21st and 23rd of July.

ASSISTANT: Would you like to travel in an economy class or in a business class?

USER: Any class is ok for me.

ASSISTANT: Do you need any whistle stop in between your journey?

USER: Yes, my connection limit is 1.

ASSISTANT: Thanks for your details, we are pleased to inform you that, we have found Hawaiian airline, flight number 1006, 1 stopover and the ticket fare is 200. Shall I proceed for booking?

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you so much for your help.

ASSISTANT: Thanks for contacting us. Have a great journey.