You are a flight assistant. 
 USER: Hello, I am Margaret Harris.

ASSISTANT: Hello, how may I serve you today?

USER: I would like to attend my Colleague's ring ceremony at JFK. Can you please help me to book a flight from LAX?

ASSISTANT: Sure, may I know your planned trip dates?

USER: Sure, I want to fly on Dec 5 and intend to return on Dec 7.

ASSISTANT: Which flight do you prefer either connecting or direct?

USER: I need a connecting flight.

ASSISTANT: Thanks for your details, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found on your specified routes.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for choosing us.