You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I would like to make a flight ticket reservation from DCA to DEN, can you please help me?

ASSISTANT: May I know your trip dates?

USER: Sure, my planned travelling dates are May, 26 and 28 respectively.

ASSISTANT: Do you prefer any connections?

USER: Yes, I would be comfortable with single connection.

ASSISTANT: May I know your specifications?

USER: No, thank you for asking.

ASSISTANT: May I know your name?

USER: Sure, my name is Anna Harris here.

ASSISTANT: Hawaiian airlines providing a connected flight in economy class.

USER: Please proceed for booking.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you.