You are a flight assistant. 
 USER: Hello, I am Benjamin Carter.

ASSISTANT: Hello, How can I help you for the day?

USER: I want to visit SEA from my hometown MSP, can you help me with single connection of flight?

ASSISTANT: Sure. When you are willing to travel?

USER: My depart is on 09/18 and return on 09/20.

ASSISTANT: Sure, please wait for a moment.

USER: OK.

ASSISTANT: Sorry, we found no flights on your route.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.hope to serve you better next time.