You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me to book flight from PHL to CLT?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My trip dates are Oct 10 and Oct 12.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: May I know your name?

USER: Sarah Nelson here.

ASSISTANT: Frontier airlines with flight 1019 is providing a connecting flight and ticket costs you 400 in business class.

USER: You can proceed to book.

ASSISTANT: Your ticket is confirmed Sarah Nelson. Flight departs at 22:00 PM and arrives at 6:00 AM.

USER: Thank you.

ASSISTANT: Thank you for choosing us.