You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: Can you please book a flight ticket from DCA to DFW?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: Thank you. I have planned my travel dates as Sept 18 and Sept 20.

ASSISTANT: Do you have any connection limit preference?

USER: Yes, I am looking for single connecting flight so please check with that.

ASSISTANT: Do you have any class preference?

USER: No, I am ok with any class to travel.

ASSISTANT: Do you have any other specifications for this trip?

USER: No, I do not have any more specifications.

ASSISTANT: May I know your good name please?

USER: Sure, myself Cynthia Lopez.

ASSISTANT: Hawaiian Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 8:00 hours and arrives at 0:00 hours, shall I book your ticket in this flight?

USER: That is fine, please proceed with booking.

ASSISTANT: Cynthia Lopez, your ticket is booked in flight number 1000.

USER: Thank you for your help.

ASSISTANT: You are welcome and have a safe journey.