You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jonathan Miller.

ASSISTANT: How may I aid you?

USER: I am planning to attend business meeting at IAD, can you please help me with booking a flight ticket from DTW?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: Sure, I would like to depart on June 22 and return on June 24.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with 1 connection.

ASSISTANT: May I know your airline preference?

USER: No, but I would like to depart during morning time.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: OK, no issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.