You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: I am looking to reserve a plane ticket from IAD to DFW. Can you please help me to find a flight?

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

USER: Thank you. I would like to travel on the dates of Aug-04 and Aug-06.

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

USER: I am comfortable to catch the departing flight which is in the afternoon time.

ASSISTANT: Do you have prefer any specific class to travel?

USER: No but I would like to travel in a normal-cost airlines.

ASSISTANT: Do you have any other specifications?

USER: Yes, I have a specification about the connection limit that should be at least one.

ASSISTANT: Can I have your good name please?

USER: My name is William Lewis.

ASSISTANT: AA 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: I am ok with this flight, you can proceed to reserve the ticket.

ASSISTANT: Ok, your ticket booking has done and the flight number is 1009.

USER: Thank you for helping me.

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

USER: Most welcome.