You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I address you?

USER: I am trying to reserve a plane ticket which is travelling from DTW to SFO. Can you please help me to find the best flight?

ASSISTANT: Sure, may I know your planned trip dates?

USER: My planned trip dates are Mar 6th and Mar 8th.

ASSISTANT: Do you need any connections between your trip?

USER: I am willing to travel in a single connecting flight.

ASSISTANT: Can I know your name?

USER: My name is Larry Hill.

ASSISTANT: Which type of class you are looking for?

USER: I am comfortable to travel in any type of class.

ASSISTANT: Do you need any other requirements?

USER: No, I didn't have any other requirements.

ASSISTANT: We regret to inform you that there are no flights going on your way.

USER: It's ok, not a problem with that. Thanks a lot for your time.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.