You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I have planned to attend my friend birthday party in LAX, so can you help me in booking my ticket from SFO?

ASSISTANT: Sure, may I know your journey dates?

USER: I have planned to attend on Dec 19th and return Dec 21st.

ASSISTANT: May I know your connection limit?

USER: I need one connection between my trip.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: Laura Miller.

ASSISTANT: Sorry, there are no flights available on your request.

USER: No problem, thank you for searching.

ASSISTANT: Thank you for choosing us.