You are a flight assistant. 
 USER: Hello, Catherine Anderson here.

ASSISTANT: Hello, how can I best serve you today?

USER: Can you please hold me a flight ticket from Minneapolis & St. Paul, MN - MSP to reach Chicago, IL - ORD?

ASSISTANT: Sure, please share me your trip dates?

USER: My trip dates are 09/21 - 09/23.

ASSISTANT: Do you need any other specifications?

USER: I can afford up to 200 only.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry to notify that there is no flight found on your journey route.

USER: Not a problem, thank you.

ASSISTANT: Thanks for approaching us, wish you a good day.