You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you for today?

USER: Is this Excelsior travel and tours? There is a meeting in Detroit with my client, so I want to book a ticket from New York.

ASSISTANT: Yes. Sure, can you share your travelling details?

USER: My nearest airport is JFK and destination airport code is DTW.

ASSISTANT: Ok, on which dates you are willing to travel from JFK?

USER: I a departing on 03/23 and return from Detroit on 03/25.

ASSISTANT: Ok. There is no flight available right now. Can you tell me your name?

USER: My name is Justin Brown.

ASSISTANT: Ok. In future, if I see any flight for you. I'll tell you. Thank you to come here.

USER: Ok. You are welcome. Thanks for your assistance.