You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to book a ticket from MSP to SEA to attend Innovation festival to share my ideas. Can you help me?

ASSISTANT: Please let me know your travelling dates?

USER: My trip dates are 04/14 and 04/16.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I need break in my journey.

ASSISTANT: Is there any specific time preference?

USER: Return time should be afternoon.

ASSISTANT: Can I know your name?

USER: Benjamin Mitchell here.

ASSISTANT: Sorry, there is no flight with your travelling dates.

USER: No problem, thanks for the information.

ASSISTANT: Thank you.