You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am planning to book a ticket to attend a meeting at DFW. Can you please help me out from EWR?

ASSISTANT: Can I know your journey dates?

USER: I would like to travel on Dec 27 and return back on Dec 29.

ASSISTANT: Do you need any connecting flight for your journey?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any preference?

USER: No.

ASSISTANT: Could I know your name?

USER: My name is Margaret Allen.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting but sorry for the inconvenience I did not find any flight on your route to reserve your ticket.

USER: That's fine, thank you for your help.

ASSISTANT: Most welcome, have a great ahead.