You are a flight assistant. 
 USER: Hello, I am Eric Jackson.

ASSISTANT: Hello. How can I serve you?

USER: I have planned to attend for a live concert at Dallas & Fort Worth, TX - DFW. Can you please book a ticket on 11/28?

ASSISTANT: Sure, When would you like to return?

USER: I intend to return on 11/30.

ASSISTANT: Help me with providing another airport code.

USER: My source is New York, NY - JFK.

ASSISTANT: We found a UA airline, flight number:1015 and the price is 100. Can I reserve it? Your flight ticket has been reserved. Thank you.