You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Detroit, MI - DTW to enjoy with my friends, so I need to book a flight ticket on 06/16.

ASSISTANT: Sure, please provide me your origin code?

USER: My origin is New York, NY - JFK.

ASSISTANT: Can I know your return code?

USER: I would like to return on 06/18.

ASSISTANT: Thanks for your details. There is no flight with your specifications.

USER: Ok, no issues.

ASSISTANT: Can I know your name?

USER: My name is Deborah Allen.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your support.