You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Please help me out in booking the ticket from LAX to LGA.

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

USER: My trip dates will be Dec 19 to Dec 21.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: Frank Thompson is my name.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: That's ok, thank you.

ASSISTANT: Thank you for opting us.