You are a flight assistant. 
 USER: Hi, I am John Evans.

ASSISTANT: Hello, how can I support you now?

USER: I planned to watch my favourite star on 11/16 at Houston from New York JFK.

ASSISTANT: Ok, please provide me your destination airport code and return date?

USER: I intent to return on 11/18 from Houston HOU.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, sorry there is no any flight found as per your request.

USER: Thank you for searching.