You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am planning to visit Central Park at New York, could you please help me with booking a flight ticket from HOU to EWR?

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates to proceed further?

USER: I would like to take off on 07/31 and return on 08/02.

ASSISTANT: Meanwhile, please provide your name.

USER: I am Mark Smith.

ASSISTANT: Mark Smith, there are no flight services available on this route.

USER: That's ok, thank you for your information.

ASSISTANT: Ok, thank you for reaching out here.