You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: Please help me in booking flight ticket from CLT to SFO.

ASSISTANT: Sure, let me know your trip dates please?

USER: My trip dates are Sept 12 to Sept 14.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Can you mention your name to proceed further?

USER: Nancy Walker.

ASSISTANT: Frontier Airlines has a connecting flight with number 1011 for fare 100, shall I proceed?

USER: You can proceed.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.