You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I want to attend a Seminar in Detroit. Can you please help me for booking the flight ticket?

ASSISTANT: Can you please share your preferable journey dates?

USER: My travelling dates are June 03 and June 05.

ASSISTANT: May I know your name please?

USER: My name is Sharon Gonzalez.

ASSISTANT: Can you please share your source and destination airport codes?

USER: My airport codes are LGA and DTW.

ASSISTANT: Do you have any other specifications?

USER: I prefer single connecting flight. I want to return in evening.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching us.