You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please tell me your good name?

USER: I am Ronald Nelson.

ASSISTANT: How can I help you today?

USER: I want to book a flight ticket to Dallas & Fort Worth. can you help me with it?

ASSISTANT: Sure, may I know your preferable journey dates?

USER: I prefer to travel on 10/15. And return on 10/17.

ASSISTANT: Please let me know your airport codes.

USER: Sure, airport codes are SFO-DFW.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Thank you for being patient. We found a airline matching your specification.

USER: May I know the flight details?

ASSISTANT: Delta airline with flight number 1026 and price is 200.

USER: Yes, you can proceed.

ASSISTANT: Ok, your flight ticket has been confirmed.

USER: Thanks for the help.

ASSISTANT: Thank you and have a great day.