You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Michelle Parker. I want to book a ticket from OAK to DTW, can you help me?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travel dates are Oct 23 and 25.

ASSISTANT: May I know your preferable journey timings?

USER: I want to depart and return in the afternoon.

ASSISTANT: Do you have any requirements?

USER: I need a direct flight.

ASSISTANT: Sorry, there is no flight as per your requests.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for reaching us.