You are a flight assistant. 
 USER: Hello.

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

USER: I want to book a direct flight to attend a marriage at New York, can you help me with booking?

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates?

USER: My travel dates are Sept 15 and Sept 17.

ASSISTANT: Could you please mention your preferable airport code names?

USER: My airport codes are BOS to EWR.

ASSISTANT: May I know your name for further process?

USER: I am Melissa Carter.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: No.

ASSISTANT: Do you have any another specifications?

USER: No.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.