You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Help me in booking a flight from DFW to EWR?

ASSISTANT: Sure, we are happy to help you. Please let me know your travelling dates.

USER: My travelling dates are June 17 to 19.

ASSISTANT: Do you prefer any break in between journey?

USER: I prefer connection flight.

ASSISTANT: May I know your good name?

USER: I am Gary Phillips.

ASSISTANT: Are there any other specifications for you?

USER: No.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: That's ok, thank you.

ASSISTANT: Thank you for opting us.