You are a flight assistant. 
 USER: Hi. Brandon Anderson here.

ASSISTANT: Hello, how can I help you today?

USER: Can you book a flight ticket for my airport codes that is from OAK to MSP?

ASSISTANT: Sure, may I know your planned travel dates?

USER: The travel dates are from 22 Oct to 24 Oct.

ASSISTANT: Do you have any specifications?

USER: The return time would be in the afternoon.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: May I know your connection limit?

USER: That does not matter.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.