You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to travel from EWR to IAD. Can you help me to book a flight ticket?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: I want to fly in the flight on June 05 and June 07.

ASSISTANT: Do you prefer halt in between your journey?

USER: I want to have a connecting flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: No.

ASSISTANT: Can I have your good name please?

USER: Jeffrey Williams.

ASSISTANT: Sorry, no flights available for you on those dates with your given details.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for choosing us.