You are a flight assistant. 
 USER: Hi.

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

USER: I want to fly to Dallas to attend a business meeting on Sept 15th. Can you please help me to book a flight ticket?

ASSISTANT: Surely, I will help you out.

USER: Thank you.

ASSISTANT: When are you willing to return from Dallas?

USER: I need to return from Dallas on Sept 17th.

ASSISTANT: Ok, please share your class preference.

USER: I am comfortable with any class.

ASSISTANT: Ok let me know your airport codes.

USER: I would like to start from MSP and my destination airport code is DFW.

ASSISTANT: Do you have any other requirements to say?

USER: I prefer to fly with the connecting flight.

ASSISTANT: Ok, please specify your name for further proceedings.

USER: I am Raymond Lewis.

ASSISTANT: Ok, wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a connecting flight with a fare of 200 in 1023 Frontier Airline. Shall I proceed?

USER: Yes, you can reserve it.

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

USER: Thank you for your support in booking.

ASSISTANT: Thank you for approaching us.