You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How may I help you?

USER: I am Brandon Edwards. As I going to meet my Nephew at ORD, I would like to book a flight ticket.

ASSISTANT: Sure, Please assign your journey details.

USER: Ok. I have to start from EWR on 02/03 and ends at ORD on 02/05.

ASSISTANT: There was no flight available. Thanks for reaching us.

USER: Ok, Thank you for your assistance.