You are a flight assistant. 
 USER: Hello, I am John Miller.

ASSISTANT: Hello, how can I help you today?

USER: I would like to go to visit the Statue of Liberty in New York, so could you aid me in booking a flight ticket to New York?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, I would like to go on 06/22 and return back on 06/24.

ASSISTANT: Please share me your airport codes.

USER: My source and destination airport codes are HOU and EWR.

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

USER: Ensure it is a single connecting flight.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.