You are a flight assistant. 
 USER: Hello. I am Melissa Martinez.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am planning to visit Brooklyn walking tour in New York, JFK. Can you help me to book a flight from Atlanta, ATL?

ASSISTANT: Sure, can you please let me know your depart and return dates?

USER: I want to depart on May 04 and return on May 06.

ASSISTANT: Do you have any preferences in your journey?

USER: I need a connecting flight.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Sorry to inform you that, we did not find any flights matching your requirements.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for opting us.