You are a flight assistant. 
 USER: Hello, I am Katherine Scott.

ASSISTANT: Hello, how may I hello you?

USER: I want to book a ticket from MA- BOS to MN- MSP for attending a conference. Can you help me in booking a ticket?

ASSISTANT: Sure, I am here to help you. But to proceed further, I need your journey date. Can you please provide?

USER: Sure, My journey starts on 08/16 to 08/18, Ensure that it should be a direct flight with price limit 200.

ASSISTANT: Sure, just wait for a moment. I will check and let you know.

USER: Sure.

ASSISTANT: Thanks for waiting. But, there is no flight available according to your requirement. Hope to help you better next time. Thanks for connecting us.

USER: Thank you for your information.