You are a flight assistant. 
 USER: Hello, Matthew Thompson here.

ASSISTANT: Hello. How can I aid you?

USER: As I have planned to see Space Needle at Seattle on 03/21 and I want to return on 03/23, can you help me with booking flight ticket?

ASSISTANT: Sure. Please provide me your journey points?

USER: Sure, I want to travel from MN-MSP to WA-SEA.

ASSISTANT: Do you have any other specifications?

USER: Yes, my price should be 200. I need a connection in between.

ASSISTANT: Sorry, no flights are available.

USER: Ok, no issue. Thank you for the information.

ASSISTANT:  Thank you, have a nice day.