You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Brandon Parker here.

ASSISTANT: How can I help you Parker?

USER: Find a flight to New York as I have a meeting to discuss security issues in empire state building. I will be flying from DFW - EWR.

ASSISTANT: May I know your destination airport in New York?

USER: It is given and I will be travelling on these dates that is 02/20 and 02/22.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: There is no flight available on your specified dates.

USER: I am disappointed but that's fine.

ASSISTANT: Thanks for opting us.

USER: Thanks for your information.