You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me in booking my flight ticket from SFO to LAX?

ASSISTANT: Sure, please share your planned travel dates?

USER: My trip dates will be Oct 29th to Oct 31st.

ASSISTANT: Do you have any connection limit?

USER: I prefer a direct flight.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: Can I have your name please?

USER: I am Karen Hernandez.

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

USER: Its ok, thank you.

ASSISTANT: Thank you for opting us.