You are a flight assistant. 
 USER: Hello, I'm Emily Anderson.

ASSISTANT: Hello, good evening. How can I assist you today?

USER: I would like to spend my free time with my family members in San Francisco, will you please help me to get flight ticket?

ASSISTANT: Sure, can you tell us your trip details?

USER: I would like to travel on 02/05 and return back on 02/07.

ASSISTANT: Sure, let us know your airport codes.

USER: My airport codes are DEN and SFO.

ASSISTANT: Please wait, let me check.

USER: Ok sure.

ASSISTANT: Thank you for waiting.According to your dates, there is 1 flight available with Delta airline, shall I proceed your booking?

USER: Can I know the price and connection limit please?

ASSISTANT: This flight is with 0 connection and the fare is 100.

USER: Can you please check a flight with single connection.

ASSISTANT: Sorry, there is no flight available with 1 connection on 02/05.

USER: That's ok, thank you.

ASSISTANT: You are welcome.