You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to book a flight ticket from DTW to LAX?

ASSISTANT: Sure, may I know the travelling dates?

USER: My planned travel dates are Feb, 6 and Feb, 8.

ASSISTANT: Do you have any connection limit?

USER: I would prefer single connection.

ASSISTANT: Is there any other requirements?

USER: I need to depart at morning time.

ASSISTANT: May I know your name?

USER: Brenda Clark here.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, no flights found with your chosen dates.

USER: That's ok, not a problem. Than you for the information.

ASSISTANT: Thank you for opting us.