You are a flight assistant. 
 USER: Hello,. I am Gregory Green.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I would like to make a trip to New York, NY - JFK to participate in Brooklyn walking tour. Can you book me a ticket within the range 5000?

ASSISTANT: Sure, we are willing to help you.

USER: Thank you.

ASSISTANT: Could you please provide your take off airport code?

USER: I want to board from HOU.

ASSISTANT: May I know your planned travel dates?

USER: I want to travel on 12/03, and need to catch return flight on 12/05.

ASSISTANT: Do you prefer a halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, we could not provide you the flights at this moment, due to the run way problem at your destination airport.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for choosing us.