You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Larry Brown.

ASSISTANT: How can I help you today?

USER: I am planning to visit New York, will you help me in booking the flight ticket from SFO to LGA?

ASSISTANT: Sure, let me know your prefered travel dates.

USER: My travelling dates are Jan 03 and Jan 05.

ASSISTANT: Do you have any preferences?

USER: I need a flight with single connection and my depart time is afternoon.

ASSISTANT: Sorry, I did not find any flights for you.

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

ASSISTANT: Thank you for connecting us.