You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Kathleen Lewis is here. Can you please book a flight ticket from MSP to LAX?

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

USER: My planned travel dates are Oct 28th and Oct 30th.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: The depart time should be afternoon. I prefer to travel in an economy class.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for opting us.