You are a flight assistant. 
 USER: Hello.

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

USER: I am looking for a flight from EWR to LGA, can you help me in booking?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: Sure, my planned travel dates are Dec 16 and Dec 18.

ASSISTANT: Ok, please let me know your preferable timings for your journey.

USER: I don't have any timings for this journey.

ASSISTANT: Do you prefer any specific class to travel?

USER: No.

ASSISTANT: Are you looking for any connecting flight or direct flight only you want?

USER: Please look for a connecting flight.

ASSISTANT: Can I have your good name please to proceed further?

USER: Myself Samuel White.

ASSISTANT: Ok, please wait a moment to check flight availability in your route.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry Samuel White, no flight is available to you on your dates due to some issues.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us, have a good day.