You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I best help you now?

USER: Please book a ticket to New York to visit Central Park from Houston, TX-HOU?

ASSISTANT: Sure, may I know your journey dates?

USER: My travel dates are from 08/30 to 09/01.

ASSISTANT: Please specify me your landing airport code?

USER: NY-EWR is my destination code.

ASSISTANT: May I know your good name?

USER: I am Mark White.

ASSISTANT: Sorry to inform that, there is no flight found on your requested dates.

USER: Ok, no issue. Thank you.

ASSISTANT: Thanks for reaching us, have a great day.