You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please reserve me a flight ticket from MSP to OAK?

ASSISTANT: Sure, I am here to help you. Please help me with your name.

USER: I am Brian Allen.

ASSISTANT: Thank you. Please tell us your travel dates.

USER: My trip dates are Sept 01 and Sept 05.

ASSISTANT: Are you comfortable with connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Noted. Please wait for a while, let me check.

USER: Sure.

ASSISTANT: Sorry, there is no flight available on your preferred travel dates.

USER: Ok, no issues. Thank you.

ASSISTANT: You are most welcome.