You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Robert Nelson.

ASSISTANT: How may I aid you?

USER: I would like to travel Dallas for attending my sister's marriage. Can you please help me in booking the ticket from ORD to DFW?

ASSISTANT: Sure, I am here to help you with that. May I know your travelling dates to proceed further?

USER: I will depart on 12/20 and again I will be return back on 12/22.

ASSISTANT: Ok, please be on hold.

USER: Sure, I will wait for your response.

ASSISTANT: UA airlines is providing you a flight with 1 connection limit and fare is 100, shall I proceed with booking?

USER: Yes, I think that can work for me.

ASSISTANT: Your ticket is confirmed with flight number 1018.

USER: Thank you very much for booking the ticket.

ASSISTANT: Welcome, have a safe journey.