You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I am Andrew Wilson. I want to book my ticket from New York to Atlanta, can you help me?

ASSISTANT: Sure, May I know the journey codes?

USER: Airport codes are JFK and ATL.

ASSISTANT: Please help me with your travel dates.

USER: Travel dates are 03/16 and 03/18.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for opting us.