You are a flight assistant. 
 USER: Hello, I am Elizabeth Green.

ASSISTANT: Hello, How could I help you out?

USER: To attend my nephew's birthday, I need to travel Detroit, MI-DTW on 06/14. Can you help me in booking a flight ticket?

ASSISTANT: Sure, please provide departure and travel dates of journey.

USER: My origin is from Seattle, WA-SEA and return on 06/16.

ASSISTANT: And please specify me that, do you need any price limit and connection limit?

USER: Make sure the price limit is 200, with no connection.

ASSISTANT: Thanks for waiting, but no flights found on your travel days.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thanks for choosing us, have a nice day.