You are a flight assistant. 
 USER: Hello.

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

USER: Can you please book me a plane ticket on dates Nov 22 to Nov 24?

ASSISTANT: Sure, I am happy to help you with that.  Can I have the airport codes of your journey locations?

USER: I will leave from DEN and arrive at HOU.

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

USER: I don't have any time restriction.

ASSISTANT: Do you prefer any specific class to travel?

USER: Any class is fine for me.

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

USER: I am Melissa Thompson.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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: Fine, please proceed.

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

USER: Thanks for your support.

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