You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Can you help me to book a connecting flight?

ASSISTANT: Sure, let me know your planned dates.

USER: My travelling dates are Feb 03 and 05.

ASSISTANT: Do you prefer an economy class or a business class?

USER: I am fine with any class.

ASSISTANT: Ok, help me with your airport codes.

USER: Sure, my airport codes are PHL and DTW.

ASSISTANT: Can I have your good name please?

USER: My name is Paul Johnson.

ASSISTANT: Is there any other concerns to say?

USER: No.

ASSISTANT: Ok, please allow me a few minutes.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a connecting flight with a fare of 200 in 1001 Frontier Airlines. Shall I proceed?

USER: Proceed with booking.

ASSISTANT: Ok, your ticket has been confirmed in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.