You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to attend my business meeting at Detroit with a halt, Can you please help me in booking a flight ticket?

ASSISTANT: Sure, help me with the trip dates?

USER: I will depart on 09/28 and return on 09/30.

ASSISTANT: May I know your name please?

USER: Sure, I am Jonathan Collins.

ASSISTANT: Help me with the airport codes?

USER: My source is New York, NY - LGA. I want to land at Detroit, MI - DTW.

ASSISTANT: We do not found any flights running in your preferred dates.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for availing us.