You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Kevin Parker.

ASSISTANT: How may I assist you?

USER: Please help me to book a flight ticket from MSP to SEA.

ASSISTANT: Ok, can I know your travelling dates?

USER: My journey dates are from 06/19 to 06/21.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found an economy class ticket with a price of 200 and 1 connection.

USER: If the flight depart in the evening, then please proceed.

ASSISTANT: Sorry, no flight found which is departing in evening time.

USER: Nothing to worry. Thanks for letting me know.

ASSISTANT: Welcome.