You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you?

USER: Please assist me in booking a flight ticket from DTW to OAK.

ASSISTANT: Sure, May I know the travelling dates?

USER: My travelling dates are from May 14th to May 16th.

ASSISTANT: Do you have any connection limit?

USER: I want a single connection in between my journey.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: I am Carol Roberts.

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

USER: No issues, thank you.

ASSISTANT: Thank you for opting us.