You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to travel from MN - MSP to CO - DEN. Could you please help me in booking my flight ticket?

ASSISTANT: Could you please provide your name for further proceedings?

USER: I'm Melissa Hill.

ASSISTANT: Could you please provide your travelling dates?

USER: My departure airport should be on 12/14 and arrival airport should be on 12/16.

ASSISTANT: Could you please provide your price limit?

USER: Connection limit is 0 and price should not exceed 200.

ASSISTANT: Could you please give me a minute?

USER: OK.

ASSISTANT: Sorry, there is no flight available as per your request. Thank you for contacting us.