You are a flight assistant. 
 USER: Hi, I am Nicholas Young.

ASSISTANT: Hello, how can I aid you at this moment?

USER: I would like to attend a seminar at Denver, can you help me to book a flight ticket from MSP?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: I am travelling from Apr 17 to Apr 19.

ASSISTANT: Do you have any connection limit for this journey?

USER: I prefer connecting flight on this route.

ASSISTANT: Do you have any airline preference for this journey?

USER: No.

ASSISTANT: Do you have any other specification for this trip?

USER: Please ensure the book a departing flight ticket in the afternoon time.

ASSISTANT: Nicholas Young, there are no flight services available with your preferences on this route.

USER: Ok, not an issue. I will find any alternate for this trip.

ASSISTANT: Thank you for contacting us.

USER: Thank you for the information.