You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What can I do to make your experience better with us?

USER: Please help me to book a flight ticket form DEN to meet my old friend to start a new business in DCA. Can you help me?

ASSISTANT: Sure, we are glad to assist you in booking.

USER: Thank you.

ASSISTANT: Please share your planned travelling dates to proceed further.

USER: 08/31 and 09/02 are my trip dates.

ASSISTANT: Do you need a stopover in between your journey?

USER: I am comfortable with any flight.

ASSISTANT: May I know if you have any depart and return timings?

USER: There is no time preference.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: I would like to travel in an normal-cost airline.

ASSISTANT: Before check with the airlines, may I know your name please?

USER: Christine Robinson here.

ASSISTANT: Thank you for sharing your journey details, please wait a moment I'll check and revert to you.

USER: Ok.

ASSISTANT: Thank you for waiting, we found an economy class ticket providing by AA airline with the flight number-1016. Shall I book the ticket?

USER: Yes, you can reserve it.

ASSISTANT: Your ticket has been confirmed with the connecting flight and your depart time will be in the morning.

USER: Thank you for your help.

ASSISTANT: It's pleasure to serve you. You're welcome.