You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you?

USER: Could you please help me to book a flight ticket from CLT to JFK?

ASSISTANT: Sure, may I know the travelling dates?

USER: My travelling dates are Apr 08 and Apr 10.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Are there any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Susan White.

ASSISTANT: Sorry, no flights found with your preferable dates.

USER: Not a problem, thank you.

ASSISTANT: Thank you for opting us.