You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Barbara Hill here.

ASSISTANT: How can I assist you at this moment?

USER: I want to attend a seminar in New York. Can you please help me for booking the flight ticket?

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

USER: My departure date is 07/19 and return date is 07/21.

ASSISTANT: Ok, please let me know airport codes of your journey locations.

USER: My airport codes are from DFW to JFK.

ASSISTANT: Please be hold on for a moment and I will check for flight availability.

USER: Ok, I will wait.

ASSISTANT: Yes, I have found a flight in Frontier airlines with connection 1 and price 100, is it ok for you?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok Barbara Hill, I have confirmed a ticket with flight number 1009.

USER: Thanks for helping me.

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