You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: My name is Paul Johnson. I am looking to book a flight ticket to meet my friend in Detroit. Can you help me for booking a flight ticket from DFW to DTW?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are Feb 05 and Feb 07.

ASSISTANT: Can I know your depart and return timings?

USER: My departure time is afternoon.

ASSISTANT: Do you have any other preference?

USER: I need a single connecting flight.

ASSISTANT: Which class do you prefer?

USER: Any class is fine for me.

ASSISTANT: Sorry, we could not find any flights on your travelling dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.