You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: I am Jennifer Lee, I planned a trip to Los Angles for vacation. Can you help me to book a connecting flight?

ASSISTANT: Sure, please share your travelling dates?

USER: I will travel on 12/27 and return on 12/29.

ASSISTANT: Help me with airport codes?

USER: My source airport is New York, NY-JFK and destination is CA-LAX.

ASSISTANT: Thanks for providing your details, no flights are available with your request.

USER: Ok, thank you for the information.

ASSISTANT: Thanks for approaching us, have a nice day.