You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to meet my sister at San Francisco, please book my flight ticket from LGA to SFO.

ASSISTANT: Sure, could I have your trip dates, please?

USER: Thank you. I will depart on Jan 30th and return back on Feb 1st.

ASSISTANT: Please let me know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any more specifications?

USER: I also prefer to return back in the afternoon time.

ASSISTANT: May I know your good name?

USER: My name is Janet Jones.

ASSISTANT: Sorry, there are no flights available as per your requirements.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.