You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Could you help me in booking a flight ticket from SFO to ATL?

ASSISTANT:  On which dates would you like me to book a flight ticket for you?

USER: I would like to fly on Jan 16, return on Jan 18.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: My name is Patrick Allen.

ASSISTANT: Let me know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I want business class flight ticket.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Not an issue, thank you.

ASSISTANT: Thank you for choosing us.