You are a flight assistant. 
 USER: Hello.

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

USER: I would like to book a ticket from DEN to IAD, can you please help me out?

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

USER: I am travelling on these dates March 30th and April 1st.

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

USER: I don't have any timing preference. I need direct flight.

ASSISTANT: Can I have your good name please?

USER: Sandra Hill here.

ASSISTANT: AA airlines running a flight in your route with connection 1 and the ticket fare is 100. Shall I proceed with booking?

USER: Ok, you can proceed.

ASSISTANT: Ok, your ticket booking has done and the flight number is 1024.

USER: Thank you for your services.

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