You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Young.

ASSISTANT: Young, how can I help you?

USER: Could you please help me with booking my flight ticket from DFW to JFK? I want to meet my cousin at New York.

ASSISTANT: Sure, could you please provide me your trip dates?

USER: Sure, I want to go on 02/04 and 02/06.

ASSISTANT: Ok, please be on hold for a while.

USER: Ok, take your time.

ASSISTANT: Sorry Young, there are no flights available on 02/04 to JFK.

USER: Ok, no problem. Thank you so much.

ASSISTANT: You are welcome, thank you very much contacting us.