You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello, I am Pamela Evans.

ASSISTANT: I am here to assist you, may I know your concern?

USER: Can you please book a ticket from DFW to EWR?

ASSISTANT: Ok, I will help you with that. Can I know the dates of your journey?

USER: Sure, I would like to go on 03/11 and return back on 03/13.

ASSISTANT: Ok, I will check please wait.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Thank you for waiting, sorry there are no flight at that location.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing our agency.