You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Good Afternoon.

ASSISTANT: Very Good Afternoon.

USER: Myself William Phillips.

ASSISTANT: How may I abet you William?

USER: I am planning to visit Dallas to check the market condition there.So please help me in flight ticket from Los Angeles.

ASSISTANT: Sure, may I know your nearest airport code please?

USER: My nearest airport is Los Angeles and airport code is CA - LAX.

ASSISTANT: If you know Dallas airport code, then please let me know.

USER: Ok, I am not sure about it but it may be DFW. Please can you check once?

ASSISTANT: Ok, I will recheck again. Will you please mention your voyage dates?

USER: My voyage dates are from 06/12 to 06/14.

ASSISTANT: Well, please wait for a while. I will be back with the available flight details.

USER: Ok.

ASSISTANT: There is a flight which can travel to your region having a single layout in between your journey having a ticket fare of 200 which is provided by Delta airlines. Would you like to book this flight for your journey?

USER: That's great, please proceed my ticket booking with the flight that you mentioned above.

ASSISTANT: Your flight ticket is successfully booked with the flight number 1017.

USER: Thank you for succouring me.

ASSISTANT: It's my pleasure to help you.