You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you now?

USER: Can you please help me in booking from IAD to ORD?

ASSISTANT: Sure, please share me your planned journey dates?

USER: My travelling dates are from Apr 8 to Apr 10.

ASSISTANT: Do you want a connecting flight?

USER: I need a direct flight.

ASSISTANT: Is there any other requirement?

USER: No.

ASSISTANT: May I know your name please?

USER: My name is Stephanie Martinez.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey data.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for visiting us.