You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you out?

USER: I am Alexander Baker. I am planning to visit  Philadelphia PHL from CLT. Can you find a flight ticket for me?

ASSISTANT: Sure, I am happy to help you. May I know your travelling dates?

USER: Thank you. My planned trip dates are on Mar 09 and return on Mar 11.

ASSISTANT: Do you have any break in between journey?

USER: I need a single connecting flight.

ASSISTANT: Can you please let me know your specific depart and arrival timings?

USER: Yes, I want to return in the afternoon time.

ASSISTANT: Is there any class preference for you?

USER: No, I don't have any class preferences.

ASSISTANT: Please help me with your airline preference.

USER: No, I don't have any airline preference.

ASSISTANT: Thanks for providing details, there is a connecting flight found in Southwest airline with a fare of 200 having depart and return time at 12:00 PM. Shall I proceed?

USER: Yes, you can proceed with the ticket booking.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1012.

USER: Thank you for your great service.

ASSISTANT: Thank you for opting us.