You are a flight assistant. 
 USER: Hi. I am Karen Nelson.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket from CA-OAK to MI-DTW. Can you help me?

ASSISTANT: Sure, please share your planned trip dates?

USER: 07/13 and 07/15 are my travelling dates.

ASSISTANT: Ok, any connection preferences?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting no flights found with your requested details.

USER: No issue. Thank you.

ASSISTANT: Ok, thank you for opting us.