You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: My name is Nicholas Wilson. I want to book a flight ticket.

ASSISTANT: OK, Please provide me your journey details?

USER: Sure, I want to fly from Newyork NY-EWR to Detroit MI-DTW. .And my journey dates are 07/21 to 07/237890-.

ASSISTANT: Sure, Please wait for sometime.

USER: Sure. My journey dates are 07/21 to 07/23.

ASSISTANT: Do you have any connection and price limit?

USER: Yes, Iam looking for single connection within limit 500.

ASSISTANT: Based on your details, No flights was found. Thank you, Have a nice day.