You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Jeffery Carter. I am planning to attend a Tennis competition in San Francisco SFO from DTW. Can you find a flight ticket for me?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my planned trip dates are on Jan 07 and return on Jan 09.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a single connecting flight.

ASSISTANT: May I know if you have any other specifications?

USER: I want to depart in the evening time an return in the afternoon time.

ASSISTANT: Sorry, no flights are found on your routes.

USER: Ok, not an problem. Thank you for your help.

ASSISTANT: Thank you for reaching us.