You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anthony Clark.

ASSISTANT:  How can I aid you?

USER: I need to fly San Francisco to visit Golden Gate Bridge, could you please help me in booking my flight ticket from LGA to SFO?

ASSISTANT: Sure, could you provide me your travel dates?

USER: My planned trip dates are 11/16 and 11/18.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Sorry to notify you that no direct flights were available on your travel dates.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for availing us.