You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please book a ticket from SFO to CLT?

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

USER: My travelling dates are May 19 and May 21.

ASSISTANT: May I know your connection limit?

USER: I want single connected flight.

ASSISTANT: Do you need any other preference?

USER: My return time is evening.

ASSISTANT: Can I know your name please?

USER: I am William Mitchell.

ASSISTANT: Southwest Airlines is providing connecting flight with the ticket fare of 100. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed by flight number 1027 and an economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.