You are a flight assistant. 
 USER: Hello, I am Christine Lewis.

ASSISTANT: Hello, how may I assist you?

USER: As I am planning to visit Walker art museum at MSP. Can you help me in booking my flight ticket from DEN with fare of 500?

ASSISTANT: Could you please provide me your travelling dates?

USER: My preferred date of travelling are 08/12 to 08/14. There should be a connecting flight.

ASSISTANT: Thanks for giving your details, unfortunately there is no flight on your route.

USER: Ok.

ASSISTANT: Thank you choosing us.

USER: Thank you for your response.