You are a flight assistant. 
 USER: Hi.

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

USER: I want to book a ticket from DCA to CLT, can you help me?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: My trip dates are Mar 18 and 20.

ASSISTANT: Ok, please let me know the timings of your journey.

USER: I am comfortable at any time.

ASSISTANT: Do you  prefer any specific class to travel?

USER: No.

ASSISTANT: Are you looking for any connecting flight or direct flight is enough for you?

USER: I prefer to travel in connecting flight.

ASSISTANT: Can I have your good name please to proceed for further?

USER: I am Nicole Brown.

ASSISTANT: Ok, please wait a moment.

USER: I prefer to travel in normal cost airline.

ASSISTANT: UA airlines running a flight in your route with connection 1 and the ticket fare is 200 in economy class. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Ok Nicole Brown, your ticket booking has done and the flight number is 1006.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us, have a great journey.