You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Could you please book a flight ticket from JFK to SFO?

ASSISTANT: Sure, I am here to help you with that, can I know your travel dates?

USER: My travelling dates are Nov 13 and Nov 15.

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Are there any other specifications?

USER: I prefer a business class.

ASSISTANT: Can I have your good name?

USER: I am Thomas Parker.

ASSISTANT: There are no flights found on your specified travel dates.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for opting us.