You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, let me know your travelling dates?

USER: My travel dates are Apr 10 and Apr 12 respectively.

ASSISTANT: Do you have any connection limit?

USER: Make sure that I need a direct flight.

ASSISTANT: Is there any other specifications?

USER: No specifications for me.

ASSISTANT: May I know your name?

USER: Debra Rodriguez here.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: No issue. Thank you.

ASSISTANT: Thank you for availing us.