You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Carol Adams. I am planning for a round trip, could you please help me with booking a flight ticket from ORD?

ASSISTANT: Sure, I am ravish to help you. Sure, Can you please let me know your travelling dates?

USER: I would like to take off on 11/30 and return on 12/02.

ASSISTANT: Please wait a moment.

USER: Sure, take your time.

ASSISTANT: Do you want return ticket also?

USER: Yes.

ASSISTANT: Ok, could you please provide your return airport code?

USER: My destination airport code is also ORD.

ASSISTANT: There is a connected flight with the fare 400, shall I proceed?

USER: Please confirm the booking.

ASSISTANT: Your booking is done.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Your welcome.